Perhaps you should try some spelling variations:
"coder coder invariant under programming" » "coder coder invariant user programming" (Expand search), "coder coder invariant order programming" (Expand search), "coder coder invariant ladder programming" (Expand search), "coder order invariants under programming" (Expand search), "coder odd invariant under programming" (Expand search), "coder or invariant under programming" (Expand search), "coder coder invariant and programming" (Expand search), "coder coder invariant curves programming" (Expand search), "coder decoder invariant under programming" (Expand search), "code code invariant under programming" (Expand search), "decoder codec invariant under 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 invariant under programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder invariant under programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder invariant under programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder invariant under programming") OR ("api python python python programming"))*.