Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"trinh tao doi snippets" » "trinh thao doi snippets", "trinh tai doi snippets", "trinh tam doi snippets", "trinh trao doi snippets", "trinh tao dai snippets", "trinh tao boi 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: (((("trinh tao doi snippets") or ("dung dung code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh tao doi snippets") OR ("dung dung code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( trinh tao doi snippets ) or ( dung dung code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh tao doi snippets") or ("dung dung code snippets"))) or ("locating bugs code snippets"))*.