Perhaps you should try some spelling variations:
"coder coder parallel tasks problem" » "coder over parallel tasks problem" (Expand search), "coder adder parallel tasks problem" (Expand search), "coder power parallel tasks problem" (Expand search), "coder coder parallel stacks problem" (Expand search), "coder coder parallel basis problem" (Expand search), "coder coder parallel cases problem" (Expand search), "coder decoder parallel tasks problem" (Expand search), "code code parallel tasks problem" (Expand search), "decoder codec parallel tasks 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)

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