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