Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dung dung dat snippets" » "duong dung dat snippets", "ung dung dat snippets", "dung ung dat snippets", "dung dung va snippets", "dung dung tai snippets", "dung dung dat slippers"
"trinh cad code snippets" » "trinh cau code snippets", "trinh cac code snippets", "trinh cam code snippets", "trinh cfd code snippets", "trinh cad model snippets", "trinh cad code slippers"

Try widening your search to All Fields.

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