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