Advanced Search Reference

The advanced search includes a set of keywords and expressions you can use to filter academic articles. Jump to a section below:

Normal Advanced Search

Title Operator

t:, title:

Abstract Operator

a:, abstract:

Year Operator

y:, year:

Citation Operator

c:, citations:

Author Operator

au:, authors:

Type your query here:

Normal Advanced SearchFind papers that contain certain keywords in the title and abstract and author by using the operators: AND, OR, -.The default operator is an AND.When selecting multiple keywords, you can define them between parenthesis in a set of keywords separated by AND or OR.In the first scenario you can simply insert a space among keywords. In the second scenario keywords should be separated by using the keyword OR.You can then remove certain keywords with the - operator.
"RNA sequence"Papers that contain the keyword "RNA sequence" as a phrase.
(RNA sequence) -genomePapers that have the keyword "RNA" and "sequence" and do not contain the keyword "genome".
"RNA sequence" -genome -expressionPapers that have the keyword "RNA sequence" and do not contain the keywords "genome" nor "expression".
Title OperatorFind papers that contain a certain keyword in their title with the reserved operator t: or title:.
t:"gene expression"Papers that have the keyword "gene expression" in their title.
t:vaccinePapers that have the keyword "vaccine" in their title.
t:(vaccine efficacy)Papers that have "vaccine" and "efficacy" in their title. It is equivalent to have an AND between them.
t:("clinical trials" OR "vaccine efficacy")Papers that have at least one of the keyword-phrases in their title.
Abstract OperatorFind papers that contain a certain keyword in their abstract with the reserved operator a: or abstract:.
a:"galactic extinction"Papers that have the keyword-phrase "galactic extinction" in their abstract.
a:("covid symptoms" OR "corona symptoms")Papers that have at least one of the keyword-phrases in their abstract.
t:"RNA" -a:"sequence"Papers that contain the keyword "RNA" in their title and do not contain the keyword "sequence" in their abstract.
Year OperatorUse the y: or year: operators to find papers published in a certain time range of year.You can use comparison expressions: >, <, >=, <= and =.In order to specify a range just specify two conditions divided by AND as in the example.
a:("social networks") AND -y:<=2015Results will show only papers containing the keyword-phrase "social network" in their abstract and that are not published before 2015.
t:"gene expression" AND y:<=2020 AND y:>=2010Papers that contain the keyword-phrase "gene expression" and are published between 2010 and 2020 (included).
Citation OperatorUse c: or citations: operators to find papers with a specific number or range of citations. You can use the comparisons as in the y: keyword.In order to specify a range just specify two conditions divided by AND as in the example.
c:>=1 AND t:("power grids" OR a:"power flow")Papers that contain the keyword-phrase "power grids" or "power flow" in their titles and are cited at least once.
Author OperatorUse au: or authors: operators to specify a set of authors in your search.The keyword usage follows the same rules of all the previous operators and they can be combined together.
au:"Bruna Marini" AND a:"acid"Papers published by "Bruna Marini" that in the abstract contain the keyword "acid"
au:"Florian Krammer" y:>=2018All papers since 2018 that contain Florian Krammer as an author.
au:("Florian Krammer" "Fatima Amanat") y:<=2017All papers published before 2017 (included) that contain Florian Krammer and Fatima Amanat as authors.