Perhaps you should try some spelling variations:
"coder coder comparing teaching problem" » "coder coder computing teaching problem" (Expand search), "coder coder comparing machine problem" (Expand search), "coder coder preparing teaching problem" (Expand search), "coder coder comparing teaching program" (Expand search), "coder coder comparing teaching profile" (Expand search), "coder coder comparing teaching programs" (Expand search), "coder cancer comparing teaching problem" (Expand search), "coder coffee comparing teaching problem" (Expand search), "coder models comparing teaching problem" (Expand search), "coder decoder comparing teaching problem" (Expand search), "code code comparing teaching problem" (Expand search), "decoder codec comparing 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 comparing teaching problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder comparing teaching problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder comparing teaching problem") OR ("api python python python programming"))*.