Perhaps you should try some spelling variations:
"word basic techniques upper" » "word basic techniques user", "word basic techniques under", "word basic techniques used", "world basic techniques upper", "word basics techniques upper", "words basic techniques upper"
"work book technical papers" » "work boot technical papers", "work hook technical papers", "work hooks technical papers", "works book technical papers", "book book technical papers", "nook book technical papers"

Try widening your search to All Fields.

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: (("word basic techniques upper") OR ("work book technical papers")).
• Removing quotes may allow a broader search: (( word basic techniques upper ) or ( work book technical papers )).
• Adding a wildcard symbol may retrieve word variants: (("word basic techniques upper") or ("work book technical papers"))*.