Find text in a image (picturebox) with Tesseract

I have some sample code of using Tesseract-OCR.
Right now the code just opens up a image file and extracts what text it can

I have a picturebox.
I have a textbox and a button
 The OCR Button Load the image from the opendialog in the picturebox and extracts what text it can.

I want to type text  in the text box AND if Tesseract can find it in the image then highlight the text it finds on the image in the picture box .
The ocr button does a pretty good job on extracting what text it can .
I will include a sample image i been working with.
Some sample code would be great .
Thanks for all comments and help.
123.tif
Tesseract-OCR.rar