Searching PDMLink / Windchill

Any ideas on how to improve the breath of searching abilities in PDMLink?  Most particularly:

1. At minimum, PDMLink should be able to search every area that a user can input information in PDMLink, but apparently it doesn't?!  For example, currently it doesn't search Change notice attachments, nor even the description that the user types in the PDMLink description field!  In addition, there are some areas of CAD objects that it has not searched but perhaps someone else can remember which ones.
2. This may be a stretch, but is there an easy way to get PDMLink to index and search drawing content (that are not attributes...the text actually on the drawing)?

Thanks! Lawrence