Perhaps you should try some spelling variations:
"coder coder practising physics problem" » "coder coder practising physical problem" (Expand search), "coder coder practicing physical problem" (Expand search), "coder coder training physics problem" (Expand search), "coder under practicing physics problem" (Expand search), "coder consider practicing physics problem" (Expand search), "coder after practicing physics problem" (Expand search), "coder coder practising physics problems" (Expand search), "coder decoder practising physics problem" (Expand search), "code code practising physics problem" (Expand search), "decoder codec practising physics problem" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ 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 practising physics problem") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder practising physics problem\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder practising physics problem ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder practising physics problem") OR ("_ python python python programming"))*.