Perhaps you should try some spelling variations:
guidebook series » guide series, ebook series
handbook define » handbook devices, handbook design, handbook ein
belt guidebook » field guidebook, ceo guidebook, ex1 guidebook
astd handbook » based handbook, art handbook, a handbook

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( belt guidebook series ) OR ( astd handbook define )).
• Adding a wildcard symbol may retrieve word variants: (( belt guidebook series ) or ( astd handbook define ))*.