Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"tranh dinh dat snippets" » "tran dinh dat snippets", "trinh dinh dat snippets", "tranh minh dat snippets", "tranh dinh ket snippets", "tranh dinh van snippets", "tranh dinh lam snippets", "tranh dinh dat 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 java java snippets") or ("tranh dinh dat snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tranh dinh dat snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tranh dinh dat snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tranh dinh dat snippets"))) or ("locating bugs code snippets"))*.