Perhaps you should try some spelling variations:
"trinh chu thiet snippets" » "trinh cau thiet snippets", "trinh cho thiet snippets", "trinh thuc thiet snippets", "trinh chua thiet snippets", "trinh cuu thiet snippets", "trinh chuan thiet snippets", "trinh chu thiet 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"

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("trinh chu thiet 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 chu thiet snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh chu thiet snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh chu thiet snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.