Search syntax
You can refine queries with a small search syntax.
Categories
Prefix a query with ! and a category name to search only that category,
for example !images cats or !news election.
Engines
Use !engine to query a single upstream engine, for example
!wikipedia Ada Lovelace.
Language
Use :lang to force a language, for example :fr tour eiffel.
Time range
Use the filters on the results page, or the time_range parameter
(day, week, month, year) when using the API.
External bangs
A leading !! followed by a bang redirects you straight to a third-party
service, for example !!g cats opens Google. External bangs leave this
instance, so its privacy protections no longer apply.