Trying to filter data and display it on another sheet, however the data isn't fully copied

Hi, im trying to filter some data(sheet="Imported Data)" and paste the data that matches to a sheet("Test"). However somehow it doesn't fully work.
What I want:
- There are 3 single cells which the user can fill in which are the criteria(Collection , System and Tag)
- Collection is a MUST fill in for the user, the others can be left blank if the user wants it so. The result must be the entire row(Column A,B and C)
- If one, two or three criteria are filled in the chosen criterias must all match to copy to the new sheet (so if one criteria is left blank, the result should be all all three criteria. But the one not filled in can be any value).
- If all criteria match, from the sheet="Imported Data" also the value of column E must be copied to sheet("Test"),
this value of column E must be the cell which is in the same row as the matched values.
If you have any questions, fill free to ask... it's a bit hard to explain.
Thanks for the help in advance! This is what I have now:

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Anyone got tips or help?