Perhaps you should try some spelling variations:
"coder coder controller perception of" » "coder coder controllers perceptions of" (Expand search), "coder coder controller percepcao of" (Expand search), "coder coder control perception of" (Expand search), "coder mode controller perception of" (Expand search), "coder order controller perception of" (Expand search), "coder power controller perception of" (Expand search), "coder decoder controller perception of" (Expand search), "code code controller perception of" (Expand search), "decoder codec controller perception of" (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 controller perception of") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder controller perception of\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder controller perception of ) OR ( api python python python programming ))*.