Perhaps you should try some spelling variations:
"coder coder on concurrent program" » "coder coder on concurrent programs" (Expand search), "coder coder on concurrent programming" (Expand search), "coder coder non concurrent program" (Expand search), "coder coder of concurrent program" (Expand search), "coder coder in concurrent program" (Expand search), "coder decoder on concurrent program" (Expand search), "code code on concurrent program" (Expand search), "decoder codec on concurrent program" (Expand search), "coder code on concurrent program" (Expand search), "coder codes on concurrent program" (Expand search), "coder powder on concurrent program" (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 on concurrent program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder on concurrent program\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder on concurrent program ) OR ( api python python python programming ))*.