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