Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"phan ham bai snippets" » "phan ha bai snippets", "phan cam bai snippets", "phan hai bai snippets", "phan pham bao snippets", "phan cham lai snippets", "phan ham khai snippets", "phan ham bai 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 ham bai 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 ham bai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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