Add description to search engines (fixing #1144)

Adding description to search engines to fix #1144 
Hi, sure, I could factor the `queryTerms[1..].join(" ")` out onto the previous line, I just wrote it quickly. Could you tell me what you mean about the indentation? if it's the line starting `searchEngineMatch[1]`, that is an argument to suggestion, I could obviously change the indentation if you think that'd be better (indent it further) but I just left it where it was. (would you indent it further?