Perhaps you should try some spelling variations:
"trinh quan dap snippets" » "tinh quang dap snippets", "trinh luat dap snippets", "trinh han dap snippets", "trinh quan lap snippets", "trinh quan dac snippets", "trinh quan doan snippets", "trinh quan dap 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 quan dap 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 quan dap snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh quan dap snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh quan dap snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.