How the multiple conditions work in the same filter.
Solution
when you enter multiple conditions in a single filter, it does not evaluate all the conditions independently.
Means it combines all the conditions and it only displays the results which satisfy all these conditions.
If there are no results which satisfy all the conditions entered, then no results are displayed.
For example, First condition is entered as filter the material which start with the category name as 'M*".
The second condition is filter the material which start with material name as "*tung*".
Then it evaluates both the conditions and filters out the materials which are having category name as "M*" and Material name as "*tung*"
Generally multiple conditions are used to further filter out the results form first condition/s.
Notes