[FIX] test for to add a "and" condition and not a "or"

Specific test for to add a "and" condition and not a "or" condition into the collection filter

i take this example on datatable website for the multisearch : 
http://legacy.datatables.net/release-datatables/examples/api/multi_filter.html

But if i enter a multiple value into the textfield, i have a "or" condition result and not a "and".