Fixing bugs in Wordpress Ajax custom field search page

Project Description:
Hello,

I have a bi-lingual search page that is fully implemented on my site, however the results have a few bugs in them that need fixing.
The English page is The Spanish page is http://www.clasesdeajedrez.net/videos/
The Spanish page is http://www.clasesdeajedrez.net/videos-de-ajedrez/

KNOWLEDGE OF the WPML wordpress plugin will make this project go MUCH faster. This project should not take more then 1-2 hours for someone who knows what they are doing.

Most of the features work ok, especially the buttons to click. However, the search by typing has a few bugs that need fixing:

*When no exact match is found it says every article is part of every opening or name.

*In the English search, sometimes empty results show up that say nothing except Jan 01, 1970 along with a link to the homepage. It seems these are in the same place as the Spanish results in when it searches by both languages.

*In the Spanish search by typing something in, the results have the English domain instead of Spanish (says onlinechesslessons.net/article instead of clasesdeajedrez.net/article

*The words defense, defensa, gambit, and gambito need to be removed from the approximate result search as they are very common words for chess openings.

*On the "Search by Year" tab I'd like for there to be a few buttons where they can click on decades (1990s, 1980s etcc

*Other small bugs we find along the way.

FUNDS WILL NOT BE RELEASED UNTIL I AM 100% SATISFIED.