Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets", "locating bung code slippers"
"dung tran nhan snippets" » "dung tren nhan snippets", "hung tran nhan snippets", "dang tran nhan snippets", "dung tran nhat snippets", "dung tan nhan snippets", "dung tran han snippets", "dung tran nhan slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung tran nhan snippets") or ("dung java java snippets"))) or ("locating bung code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tran nhan snippets") OR ("dung java java snippets"))) OR ("locating bung code snippets")).
• Removing quotes may allow a broader search: (((( dung tran nhan snippets ) or ( dung java java snippets ))) or ( locating bung code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tran nhan snippets") or ("dung java java snippets"))) or ("locating bung code snippets"))*.