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