Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"trinh duoc bat snippets" » "trinh doc bat snippets", "trinh duc bat snippets", "trinh quoc bat snippets", "trinh duoc ban snippets", "trinh duoc dat snippets", "trinh duoc chat snippets", "trinh duoc bat 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: (((("trinh duoc bat snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh duoc bat snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( trinh duoc bat snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh duoc bat snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.