Perhaps you should try some spelling variations:
"coder coder teaching image processing" » "coder code teaching image processing" (Expand search), "coder poder teaching image processing" (Expand search), "coder model teaching image processing" (Expand search), "coder coder teaching stage processing" (Expand search), "coder coder teaching primary processing" (Expand search), "coder decoder teaching image processing" (Expand search), "code code teaching image processing" (Expand search), "decoder codec teaching image 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)

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 teaching image processing") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder teaching image processing\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder teaching image processing ) OR ( api python python python programming ))*.