Perhaps you should try some spelling variations:
"coder coder exchanging linear programming" » "coder coder exchanging ideas programming" (Expand search), "coder coder exchanging time programming" (Expand search), "coder coder examining linear programming" (Expand search), "coder water exchanging linear programming" (Expand search), "coder cover changing linear programming" (Expand search), "coder or exchanging linear programming" (Expand search), "coder decoder exchanging linear programming" (Expand search), "code code exchanging linear programming" (Expand search), "decoder codec exchanging linear 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 exchanging linear programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder exchanging linear programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder exchanging linear programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder exchanging linear programming") OR ("api python python python programming"))*.