Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"phan mau sac snippets" » "phan dau sac snippets", "phan cau sac snippets", "phan may sac snippets", "phan mau sau snippets", "phan mat sach snippets", "phan cau sach snippets", "phan mau sac 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: (((("phan mau sac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan mau sac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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