Perhaps you should try some spelling variations:
"dung thanh code snippets" » "dong thanh code snippets", "dang thanh code snippets", "dung thang code snippets", "dung thanh cong snippets", "dung thanh de snippets", "dung thanh code slippers"
"van dung code snippets" » "van dung cong snippets", "van dung co snippets", "van dung de snippets", "van dong code snippets", "xay dung code snippets", "tin dung code snippets", "van dung 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: (((("van dung code snippets") or ("dung thanh code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van dung code snippets") OR ("dung thanh code snippets"))) OR ("locating bug code snippets")).
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