Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"trinh toan duc snippets" » "tinh toan duc snippets", "thanh toan duc snippets", "trinh han duc snippets", "trinh tran duc snippets", "trinh toan du snippets", "trinh ton duc snippets", "trinh toan duc slippers"
"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", "dung dung 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 code snippets") or ("trinh toan duc snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dung code snippets") OR ("trinh toan duc snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung dung code snippets ) or ( trinh toan duc snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dung code snippets") or ("trinh toan duc snippets"))) or ("locating bugs code snippets"))*.