Hello and happy new year
I am not sure I understand the problem
do you have SCREW and attr1, attr2 attr3 and what to search concurrently if either attr1, 2 and 3 contains SCREW ?
or you mean that the document has multiple values for the same attribute (it is possible for WTdocument, never seen it on EPMDoc though)
If your attributes do not have restricted values, you can use the advanced search as said previous and use wildcards.
For instance if
attr1 = SCREW BLUE
attr2 = ISO SCREW
attr3 = OTHER SCREW TYPE
in your advance searched you select as criteria your 3 attributes and put *SCREW*
if the attributes have restricted values, you cannot use wildwide car as you have the restricted value instead.
Nonetheless, if you create a folder view and use filter you can use wildcard in your filter
Another option is to install SOLR, (used to be called FAST). If you put *SCREW* in the global search, PDMLink will search everywhere for that string, regardless of the parameters, attributes etc...
Best regards