Do you want to add a text search to the form, or a separate search text box (which would potentially mean two forms on one page)?
This will change with V3 (due in a few months), but, for now, when referring to the results page, having a cloned/duplicated form (having more than one instance of the same form), or multiple different forms, will potentially be an issue, as doing this can mean that they don’t work together and often will conflict with each other. Just be aware that this is possible (likely), so if you have problems with the results not working, that might be why. Normally, we suggest only one form instance on the results page.
You CAN have more than one form on any page other than the results page.
What V3 will also bring is the ability to have a form on the page, but split it up to different parts of the page.
