Perhaps you should try some spelling variations:
"dung nhanh hoan snippets" » "dung nhanh code snippets", "dung nhan hoan snippets", "vung nhanh hoan snippets", "dung thanh hoan snippets", "dung thanh hoang snippets", "dung thanh hoa snippets", "dung khanh hoa snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung nhanh hoan snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung nhanh hoan snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
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