Perhaps you should try some spelling variations:
"coder precoder severe routing problem" » "coder precoce severa routing problem" (Expand search), "coder precoder scheme routing problem" (Expand search), "coder decoder severe routing problem" (Expand search), "coder precoder secure routing problem" (Expand search), "coder precoder diverse routing problem" (Expand search), "coder precoder severe crowding 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), "manim 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 precoder severe routing problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder severe routing problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder severe routing problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder severe routing problem") OR ("api python python python programming"))*.