Perhaps you should try some spelling variations:
"coder precoder theory based programming" » "coder precoder theory and programming" (Expand search), "coder precoder theory based program" (Expand search), "coder precoder theory cone programming" (Expand search), "coder precedent theory based programming" (Expand search), "coder proper theory based programming" (Expand search), "coder pender theory based programming" (Expand search), "coder decoder theory based programming" (Expand search)
"api pitons python python programming" » "api pitons pythons python programming" (Expand search), "api pitons piton python programming" (Expand search), "api pitons pytm python programming" (Expand search), "api citons python python programming" (Expand search), "api pitoni python python programming" (Expand search), "api pitoes 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 precoder theory based programming") OR ("api pitons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder theory based programming\") OR (\"api pitons python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder theory based programming ) OR ( api pitons python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder theory based programming") OR ("api pitons python python programming"))*.