Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han phan cac snippets" » "than phan cac snippets", "hanh phan cac snippets", "phan phan cac snippets", "han nhan cach snippets", "han phan dau snippets", "han phan lap 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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