Perhaps you should try some spelling variations:
"basic projective va–modules p" » "basic properties va–modules p", "basic projective va–modules _", "basic projective va–modulus _", "basic projective va–nodules _"
"basic projective a or projection _ –modules p" » "basic projective a or projection _ –modules _", "basic projective a or projection _ –modulus _", "basic projective a or projection _ –nodules _"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("basic ((projective a) or (projection _))–modules p") or ("basic projective va–modules p"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("basic ((projective a) or (projection _))–modules p") OR ("basic projective va–modules p")).
• Removing quotes may allow a broader search: (( basic ((projective a) or (projection _))–modules p ) or ( basic projective va–modules p )).
• Adding a wildcard symbol may retrieve word variants: (("basic ((projective a) or (projection _))–modules p") or ("basic projective va–modules p"))*.