You can try "site:" grammar to search fonts in FontKe.com via Google, Yahoo, Bing, Baidu, 360 Search and Sougou.

The grammar is "site:fontke.com key words", and the ":" is half-full sign and there should be a spacing behind "site:fontke.com"

Sometimes, the search engine does not collect all of the pages, so you should try in FontKe first before use these search engine.