I appreciate you taking the the time to answer, however, this is really not what anyone is looking for.

This is suggesting using a second software. Its an extra, unnecessary step.

The easiest way this should work is to:

1 - Create sales order

2 - Click on Item name

3 - Have a field popup where you can type either an item code or description

4 - Start filtering automatically as its being typed (no button)

5 - Filter by any keyword or partial keyword in any order

An item numbered 999 with description "Large blue XL shirt long sleeve" should popup with any other items that match the same partial keyword description as the input, for example:

"bl lo sh"

Anything what matches that (in any order) should popup. In the case above Large blue XL shirt long sleeve