Perhaps you should try some spelling variations:
"dung nhat dam snippets" » "dung nhan dam snippets", "dang nhat dam snippets", "dung nha dam snippets", "dung hat dam snippets", "dung nhat lam snippets", "dung thuat dam snippets", "dung nhat dam slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung nhat dam snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung nhat dam snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
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