How to make search like google style?

Question

1) if I search aaa bbb ccc it search for any title OR tag like aaa OR like bbb OR like ccc. SQL = like aaa or like bbb or like ccc

Google search does, AND, means, any title OR tag like aaa AND bbb AND ccc. SQL = like aaa AND like bbb AND like ccc

I feel google style is better, more useful, why, if I google BASS, the result could have fish, gitar, and people.

I only want to see result related to fish, and filter out others. so I search BASS FISH, google will use AND by default, means, BASS AND FISH. it will only show results have both BASS and fish.

If I google BASS -fish, I will filter out all fish related page, means, I don't want to see fish related page, SQL = Like BASS AND not like FISH.

google search style is more useful, it should only need to make change at SQL, or => and

该提问来源于开源项目：lincanbin/Carbon-Forum

Answer 1

google style, - minus means not include, + plus sign means include

aaa -bbb -ccc

means, pages include aaa, but not include bbb, not include ccc

+aaa bbb -ccc

means, pages include aaa AND bbb, but NOT include ccc