Perhaps you should try some spelling variations:
"coder coder of walking problem" » "coder coder of walking problems" (Expand search), "coder coder of packing problem" (Expand search), "coder coder of halting problem" (Expand search), "coder decoder of walking problem" (Expand search), "code code of walking problem" (Expand search), "decoder codec of walking problem" (Expand search), "coder code of walking problem" (Expand search), "coder codes of walking problem" (Expand search), "coder codex of walking 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 of walking problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder of walking problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder of walking problem") OR ("api python python python programming"))*.