Perhaps you should try some spelling variations:
"dung using data snippets" » "dung ung data snippets", "dung sinh data snippets", "dung uong data snippets", "dung using java snippets", "dung using sat snippets", "dung missing data snippets", "dung using data slippers"
"dung tot nhat snippets" » "dung mot nhat snippets", "dong tot nhat snippets", "dung toi nhat snippets", "dung tot nha snippets", "dung tiet nhat snippets", "dung moi nhat snippets", "dung tot nhat 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 tot nhat snippets") or ("dung using data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tot nhat snippets") OR ("dung using data snippets"))) OR ("locating bug code snippets")).
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