Perhaps you should try some spelling variations:
"using c code snippets" » "using lc code snippets", "using a code snippets", "using _ code snippets", "using cfd code snippets", "using c code slippers"
"dung co khoi snippets" » "dung cho khoi snippets", "dung cong khoi snippets", "dung cua khoi snippets", "dung co khi snippets", "dung co hoi snippets", "dung hoc khoi snippets", "dung co khoi slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("using c code snippets") or ("dung co khoi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using c code snippets") OR ("dung co khoi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using c code snippets ) or ( dung co khoi snippets ))) or ( locating bug code snippets )).
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