Perhaps you should try some spelling variations:
"coder precoder net concurrent programming" » "coder precoder net constraint programming" (Expand search), "coder decoder net concurrent programming" (Expand search), "coder precoder test concurrent programming" (Expand search), "coder precoder non concurrent programming" (Expand search), "coder precoder fft concurrent programming" (Expand search), "coder precoder _ concurrent programming" (Expand search), "coder precoce nep concurrent programming" (Expand search), "coder precoder hp concurrent 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 precoder net concurrent programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder net concurrent programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder net concurrent programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder net concurrent programming") OR ("api python python python programming"))*.