Perhaps you should try some spelling variations:
"dung danh thong snippets" » "dung anh thong snippets", "dung danh thang snippets", "dung dinh thong snippets", "dung doanh thong snippets", "dung dan thong snippets", "dung dang thong snippets", "dung danh thong slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "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: (((("dung danh thong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung danh thong snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
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