Perhaps you should try some spelling variations:
"coder coder working complex problem" » "coder coder housing complex problem" (Expand search), "coder coder solving complex problem" (Expand search), "coder coder ring complex problem" (Expand search), "coder coder working complex problems" (Expand search), "coder cone working complex problem" (Expand search), "coder power working complex problem" (Expand search), "coder under working complex problem" (Expand search), "coder decoder working complex problem" (Expand search), "code code working complex problem" (Expand search), "decoder codec working complex 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 working complex problem") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder working complex problem\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder working complex problem ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder working complex problem") OR ("_ python python python programming"))*.