Not able to use more than one filter of the same type simultaneously

For example, if I want to filter all bugs with status "Confirmed" and "Feedback, it is not possible to do it. It is only possible to enter one value for each type of filter at the time.

Also, I've seen combined filters are not working so good, for tags for example, the search comes all mied with different results (e.g.: if I search for tags #android and #bug, it brings up the #web taggeds bugs along with the results.