Perhaps you should try some spelling variations:
"coder precoder scheme poder programming" » "coder precoder scheme modern programming" (Expand search), "coder precoder scheme order programming" (Expand search), "coder precoder scheme ladder programming" (Expand search), "coder precoding scheme poder programming" (Expand search), "coder decoder scheme poder programming" (Expand search), "coder precoder schemes power programming" (Expand search), "coder precoder schemes under 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 scheme poder programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder scheme poder programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder scheme poder programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder scheme poder programming") OR ("api python python python programming"))*.