Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung cu hoan snippets" » "dung cua hoan snippets", "dung co hoan snippets", "dung cho hoan snippets", "dung cuu hoan snippets", "dung su hoan snippets", "dung vu hoan snippets"
"locating bug code snippets" » "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 java java snippets") or ("dung cu hoan snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dung cu hoan snippets"))) OR ("locating bug code snippets")).
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