Perhaps you should try some spelling variations:
"coder coder basic concurrent programing" » "coder coder basic concurrent programming" (Expand search), "coder coder basic concorrent programming" (Expand search), "coder coder basic concurrent programs" (Expand search), "coder coder based concurrent programing" (Expand search), "coder coder passing concurrent programing" (Expand search), "coder coder saliva concurrent programing" (Expand search), "coder decoder basic concurrent programing" (Expand search), "code code basic concurrent programing" (Expand search), "decoder codec basic concurrent programing" (Expand search), "coder model basic concurrent programing" (Expand search), "coder under basic concurrent programing" (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 basic concurrent programing") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder basic concurrent programing\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder basic concurrent programing ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder basic concurrent programing") OR ("api python python python programming"))*.