Perhaps you should try some spelling variations:
"coder coder commutative _ programming" » "coder over commutative _ programming" (Expand search), "coder some commutative _ programming" (Expand search), "coder non commutative _ programming" (Expand search), "coder decoder commutative _ programming" (Expand search), "code code commutative _ programming" (Expand search), "decoder codec commutative _ programming" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder commutative _ programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder commutative _ programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder commutative _ programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder commutative _ programming") OR ("api python python python programming"))*.