Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tan duc ban snippets" » "tran duc ban snippets", "tan duoc ban snippets", "than duc ban snippets", "tan duc tan snippets", "tan duc van snippets", "tan dua ban snippets", "tan duc ban 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: (((("tan duc ban snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan duc ban snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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