Perhaps you should try some spelling variations:
"coder coder _ teaching problem" » "coder coder _ teaching program" (Expand search), "coder coder _ teaching profile" (Expand search), "coder coder _ teaching programs" (Expand search), "coder decoder _ teaching problem" (Expand search), "code code _ teaching problem" (Expand search), "decoder codec _ teaching 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder _ teaching problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder _ teaching problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder _ teaching problem") OR ("api python python python programming"))*.