Perhaps you should try some spelling variations:
"coder coder samples subgraph problem" » "coder coder samples subgroups problem" (Expand search), "coder code samples subgraph problem" (Expand search), "coder cover samples subgraph problem" (Expand search), "coder modern samples subgraph problem" (Expand search), "coder decoder samples subgraph problem" (Expand search), "code code samples subgraph problem" (Expand search), "decoder codec samples subgraph problem" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python 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 samples subgraph problem") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder samples subgraph problem\") OR (\"in python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder samples subgraph problem ) OR ( in python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder samples subgraph problem") OR ("in python python python programming"))*.