Perhaps you should try some spelling variations:
"coder coding pid controller program" » "coder coding pid controlador program" (Expand search), "coder coding pid control program" (Expand search), "coder coding pid controle programa" (Expand search), "coder coding pid controllers program" (Expand search), "coder coding _ controller program" (Expand search), "modern coding pid controller program" (Expand search), "color coding pid controller program" (Expand search), "odor coding pid controller program" (Expand search), "coder coding and controller program" (Expand search), "coder coding in controller program" (Expand search), "coder coding is controller program" (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 coding pid controller program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding pid controller program\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding pid controller program ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding pid controller program") OR ("api python python python programming"))*.