You offer more jobs the more values I select. It seems that you select the jobs by 'or-ing' the values so that the jobs are shown where at least one value matc

You offer more jobs the more values I select. It seems that you select the jobs by 'or-ing' the values so that the jobs are shown where at least one value matches. I would prefer if you would 'and' the values so that I only see the positions that fulfill all the values that I have selected.