Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets"
"dung hong cac snippets" » "duong hong cac snippets", "dung huong cac snippets", "dung khong cac snippets", "dung thong cac snippets", "dung phong cac snippets", "dung cong cac 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 hong cac snippets") or ("data using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung hong cac snippets") OR ("data using java snippets"))) OR ("locating bug code snippets")).
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