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