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

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: (("basic ((projective a) OR (projection _))–modules p") OR ("basic properties a–modules p"))~.
• Removing quotes may allow a broader search: (( basic ((projective a) OR (projection _))–modules p ) or ( basic properties a–modules p ))~.
• Adding a wildcard symbol may retrieve word variants: (("basic ((projective a) OR (projection _))–modules p") or ("basic properties a–modules p"))*.