Advanced search does not find items

I have this problem with search:

If I search any sentence in:
- Simple search: it gives me some results
- Advanced search: it gives me always 0 results (even if I add fields).

So, why the advanced search does not work?

Updating the problem...

Using advanced search (in omeka administration):
- If I fill some fields, but I leave the keyword field empty, it finds items.
- If I fill some fields, and also fill the keyword field, it doesn't find items.

(It is supposed that I know the item I'm searching).

So, you're saying that the keyword search on the advanced search form isn't working, but the other forms of search are?

Similar report here.

Search by keyword is now failing in /items/browse after an upgrade from 2.0.2 to 2.0.4.

On a 2.0.2 release, using the complex search entry page, /items/search,
entering a keyword alone finds all the expected items.
Entering only a qualified search by field name, qualifier, and value finds all the expected items.
Entering both keyword and qualified search gives the correct smaller set satisfying both criteria.

The URL for the search result is items/browse plus the query parameters.

On a 2.0.4 release with the same data,
entering a keyword alone on the complex search entry page, /items/search, gives zero items found.
Entering only a qualified search gives the expected results.
Entering both a keyword and a qualified search gives a small set but not the complete set expected that match the criteria.

The URL for the search result is items/browse plus the query parameters.

In 2.0.4, when the query parameter "search" has a value assigned to it, the search results are wrong.

The query parameters shown in the results page URL are the same for both versions.

In both 2.0.2 and 2.0.4 doing the keyword search from the header search form gives correct results. The URL for the result page in these cases is /search?query=keyword

This is from a local PC development environment so it can't be visited to show the failure.

Is there anything else that can be reported to help figure out what is going on?

I'm seeing the same behavior in 2.0.4 also (as described by Bob).

So you're all describing an error where results are wrong when using the items-specific search and specifying keywords, correct?

This problem should be fixed in Omeka 2.1 (and should already be fixed in the 2.1 release candidate).