Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets"
"trinh quan den snippets" » "tinh quang den snippets", "trinh luat den snippets", "trinh han den snippets", "trinh quan doan snippets", "trinh quan he snippets", "trinh quan doi snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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