Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khan ha tran snippets" » "khat ha tran snippets", "phan ha tran snippets", "khao ha tran snippets", "khan nha trang snippets", "khan thai tran snippets", "khan tan tran snippets", "khan ha tran 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: (((("python using java snippets") or ("khan ha tran snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("khan ha tran snippets"))) OR ("locating bug code snippets")).
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