Perhaps you should try some spelling variations:
"barcode decoding python post processing" » "barcode decoding method post processing" (Expand search), "barcode decoding python pyxsc processing" (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), "manim 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: (("barcode decoding python post processing") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"barcode decoding python post processing\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( barcode decoding python post processing ) OR ( api python python python programming ))*.