Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets", "locating bung code slippers"
"dung len zheng snippets" » "dung lei zheng snippets", "dung len nhung snippets", "dung li zheng snippets", "dung nen zheng snippets", "dung le zheng snippets", "dung luan zheng snippets", "dung len zheng 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 len zheng 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 len zheng snippets") OR ("dung java java snippets"))) OR ("locating bung code snippets")).
• Removing quotes may allow a broader search: (((( dung len zheng snippets ) or ( dung java java snippets ))) or ( locating bung code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung len zheng snippets") or ("dung java java snippets"))) or ("locating bung code snippets"))*.