Perhaps you should try some spelling variations:
"coder coder sampling string problem" » "coder coder sampling during problem" (Expand search), "coder coder sampling resting problem" (Expand search), "coder coder sampling using problem" (Expand search), "coder under sampling string problem" (Expand search), "coder over sampling string problem" (Expand search), "coder core sampling string problem" (Expand search), "coder coder sampling sizing problem" (Expand search), "coder coder sampling rostering problem" (Expand search), "coder coder sampling sharing problems" (Expand search), "coder decoder sampling string problem" (Expand search), "code code sampling string problem" (Expand search), "decoder codec sampling string 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 sampling string problem") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder sampling string problem\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder sampling string problem ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder sampling string problem") OR ("_ python python python programming"))*.