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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("basic ((projective a) or (projection _))–modules p") OR ("basic properties a–modules p"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"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"))*.