Do you mean by coordinates the column and row number in the MS document file?
If yes, I searched internet and found the following thread that takes about a similar approach:
http://stackoverflow.com/questions/9181085/how-to-get-text-from-line-number-in-ms-word
But if you mean that you want to get text based on display coordinates (for example), One solution that I can suggest is to load the document as image, draw a region on it, crop it and then pass the cropped image to OCR engine. I know that leadtools has support for OCR and loading documents. You can find more information here:
http://www.codeproject.com/Articles/317163/OCR-with-LEADTOOLS-The-Better-Choice