Perhaps you should try some spelling variations:
"thanh toan trinh snippets" » "thanh hoa trinh snippets", "thanh san trinh snippets", "tinh toan trinh snippets", "thanh thanh trinh snippets", "thanh trang trinh snippets", "thanh toan tin snippets", "thanh toan trinh slippers"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets", "dung cac 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: (((("thanh toan trinh snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thanh toan trinh snippets") OR ("dung cac code snippets"))) OR ("locating bug code snippets")).
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