Query Parameters in Google Custom Search

[Seductor]

I'm using Google Custom Search and I found that they ask to enter your 'Query Parameter'. It is the word or words that designate an internal query parameter such as "term,search,query". Sometimes the word is just a letter, such as "s" or "q".

However, vBulletin doesn't have query parameters in their url.

I'm wondering if someone could help me or give me an idea about how to display something like this in my search queries:

searchid=285790&q=word

Thanks.