Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"tan trinh cac snippets" » "tan thinh cac snippets", "tao trinh cac snippets", "dan trinh cac snippets", "tan trinh cau snippets", "tan trinh chat snippets", "tan trinh chao snippets"
"dung dung code snippets" » "duong dung code snippets", "ung dung code snippets", "dung ung code snippets", "dung dung cong snippets", "dung dung co snippets", "dung dung de snippets"

Try widening your search to All Fields.

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