Perhaps you should try some spelling variations:
"coder precoder parallel string problem" » "coder recovery parallel string problem" (Expand search), "coder power parallel string problem" (Expand search), "coder precoder parallel springs problem" (Expand search), "coder precoder parallel parking problem" (Expand search), "coder precoder parallel stories problem" (Expand search), "coder decoder parallel string problem" (Expand search), "coder precoder parallel sizing problem" (Expand search), "coder precoder parallel rostering problem" (Expand search), "coder precoder parallel sharing problems" (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 precoder parallel string problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder parallel string problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder parallel string problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder parallel string problem") OR ("api python python python programming"))*.