Perhaps you should try some spelling variations:
"coder coder regurgitation concurrent programming" » "coder coder regurgitation current programming" (Expand search), "coder coder regurgitation constraint programming" (Expand search), "coder and regurgitation concurrent programming" (Expand search), "coder acid regurgitation concurrent programming" (Expand search), "coder seed regurgitation concurrent programming" (Expand search), "coder decoder regurgitation concurrent programming" (Expand search), "code code regurgitation concurrent programming" (Expand search), "decoder codec regurgitation concurrent programming" (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 regurgitation concurrent programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder regurgitation concurrent programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder regurgitation concurrent programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder regurgitation concurrent programming") OR ("api python python python programming"))*.