"expanded search" is a perfectly acceptable phrase, and can be used in written English.
You can use it in any situation where you mean to imply a more comprehensive search, or a more thorough investigation than usual. For example: "In order to find the source of the leak, I conducted an expanded search of the pipes."
There are three reasons why an expanded search is timely.
After the initial military-led effort to find such weapons came under fire, President Bush turned to the C.I.A. to oversee an expanded search.
An expanded search warrant authority justified by the Sept. 11 attacks, for example, was used far more often in routine investigations like suspected drug, fraud and tax offenses.
They called their expanded search engine Google a name derived from a misspelling of the word googol (a mathematical term for the number 1 followed by 100 zeros).
AOL, a unit of AOL Time Warner based in Dulles, Va., said the expanded search services include localized search responses, which make it easier to find businesses, services or stores near them based on the ZIP code they have on file with AOL.
The expanded search will come as a disappointment to the four men who were on the shortlist last week: the former New York mayor Rudy Giuliani, the former Massachusetts governor Mitt Romney, the retired general David Petraeus and the Republican senator Bob Corker.
The lawsuit seeks to force Citizenship and Immigration Services to impose deadlines for completing all the checks and challenges the expanded searches.
Facebook may expand search ads to more countries based on the test's performance.
The expanding search now involves the FBI, U.S. marshals, and Georgia law enforcement.
Expanding search terms with synonyms also improves data retrieval.
Here we extend our characterization of PHF-tau using mass spectrometry methods by expanding search criteria to include both acetyl- and methyl-lysine modifications.
