Perhaps you should try some spelling variations:
"dung using data snippets" » "dung sinh data snippets", "dung uong data snippets", "dung using java snippets", "dung using sat snippets", "dung missing data snippets", "dung using data slippers"
"dung ung theo snippets" » "dung trung theo snippets", "dung quang theo snippets", "dung chung theo snippets", "dung dung theo snippets", "dung sung theo snippets", "dung vung theo snippets", "dung ung theo 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 using data snippets") or ("dung ung theo snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung using data snippets") OR ("dung ung theo snippets"))) OR ("locating bug code snippets")).
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