Perhaps you should try some spelling variations:
"trinh lap dung snippets" » "trinh luat dung snippets", "trinh luan dung snippets", "trinh phap dung snippets", "trinh ap dung snippets", "trinh lan dung snippets", "trinh cap dung snippets", "trinh lap dung slippers"
"dung dung code snippets" » "duong dung code snippets", "ung dung code snippets", "dung ung code snippets", "dung dung cong snippets", "dung dung co snippets", "dung dung de snippets", "dung dung code 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: (((("trinh lap dung snippets") or ("dung dung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh lap dung snippets") OR ("dung dung code snippets"))) OR ("locating bug code snippets")).
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