Perhaps you should try some spelling variations:
"coder coder method concurrent programs" » "coder coder method concurrent programming" (Expand search), "coder coder with concurrent programs" (Expand search), "coder coder the concurrent programs" (Expand search), "coder coder to concurrent programs" (Expand search), "coder powder method concurrent programs" (Expand search), "coder holder method concurrent programs" (Expand search), "coder power method concurrent programs" (Expand search), "coder decoder method concurrent programs" (Expand search), "code code method concurrent programs" (Expand search), "decoder codec method concurrent programs" (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)

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 method concurrent programs") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder method concurrent programs\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder method concurrent programs ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder method concurrent programs") OR ("api python python python programming"))*.