Perhaps you should try some spelling variations:
"phan trong code snippets" » "pham trong code snippets", "nhan trong code snippets", "phan tong code snippets", "phan trong cong snippets", "phan trong co snippets", "phan trong che snippets", "phan trong code slippers"
"dung rung code snippets" » "dung trung code snippets", "duong rung code snippets", "dung ung code snippets", "dung rung code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung rung code snippets") or ("phan trong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung rung code snippets") OR ("phan trong code snippets"))) OR ("locating bug code snippets")).
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