Perhaps you should try some spelling variations:
"trinh chao hoang snippets" » "trinh chat hoang snippets", "trinh han hoang snippets", "trinh co hoang snippets", "trinh pham hoang snippets", "trinh khac hoang snippets", "trinh thai hoang snippets", "trinh chao hoang slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug code slippers", "dung bug core snippets"
"locating bug code snippets" » "locating bug code slippers", "locating bug core snippets"

Try widening your search to All Fields.

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