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