Let's say I'm doing some research on something on Google. Do I say I'm searching on or searching for something on Google?
- Anybody can ask a question
- Anybody can answer
- The best answers are voted up and rise to the top
It's search for. In fact, this is the first time I see search on at all. And indeed, as a quick-and-dirty check, the Corpus of Contemporary American English has a measly 217 cites for "search on" (as opposed to 10.220 for "search for"). The British National Corpus has 39 and 2028 cites, respectively.
When regarding search in general, it is not uncommon to 'search on (field or criteria) to find (desired result)'