Filtering by list of keywords and pasting results into spreadsheet

Basically I have two Spreadsheets, lets call it Spreadsheet 1 and Spreadsheet 2.

Spreadsheet 1 has a list of partial employee names in column A.
Spreadsheet 2 has a list of 500,0000 full employee names in column A and their phone number in column B and address in column C through E.

Basically what I want to do is do a wildcard search for the partial employee name, so like lookup Spreadsheet 1' Column A's *name* in column A of Spreadsheet 2. Based on the number of matches. I want to insert that many blank rows underneath the partial employee name, and paste those matched rows there, then continue to the second partial employee name lookup and repeat the process.

This loop has to repeat 1000 times.

I would appreciate help very much.