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