Perhaps you should try some spelling variations:
"coder coder master sample problem" » "coder coder master complex problem" (Expand search), "coder coder water sample problem" (Expand search), "coder coder after sample problem" (Expand search), "coder coder cluster sample problem" (Expand search), "coder code master sample problem" (Expand search), "coder decoder faster sample problem" (Expand search), "coder modelo master sample problem" (Expand search), "coder decoder master sample problem" (Expand search), "code code master sample problem" (Expand search), "decoder codec master sample 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 master sample problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder master sample problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder master sample problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder master sample problem") OR ("api python python python programming"))*.