Now this atleast to my experience is possible only in the advanced Search & not in the normal search.
To look at votes:
* Go to the query page. Do a normal query, but enter 1 in the "At least ___ votes" field. This will show you items that match your query that have at least one vote.
Then the other thing of Voting for a bug
# Click on the "Vote for this bug" link that appears just above the "Additional Comments" field. (If no such link appears, then voting may not be allowed in this bug's product.)
# Indicate how many votes you want to give this bug. This page also displays how many votes you've given to other bugs, so you may rebalance your votes as necessary.
I did click on vote for this bug & it took me to a page where I could change the vote but didn't tell anything about what difference does it make. Also am I able to double vote or what? Leaves me thoroughly confused. I tried voting for inclusion of your bug in the main trunk. Don't know whether I was able to do it or not. Is there some way to find out ?