Perhaps you should try some spelling variations:
"coder coder trial based problem" » "coder coder trial based problems" (Expand search), "coder coder trial based probe" (Expand search), "coder coder trial posed problem" (Expand search), "coder decoder trial based problem" (Expand search), "code code trial based problem" (Expand search), "decoder codec trial based problem" (Expand search), "coder over trial based problem" (Expand search), "coder under trial based problem" (Expand search), "coder holer trials based problem" (Expand search), "coder coder material based problem" (Expand search), "coder coder cereal based problem" (Expand search), "coder coder animal based 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 trial based problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder trial based problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder trial based problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder trial based problem") OR ("api python python python programming"))*.