Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tran thuy hu snippets" » "thanh thuy hu snippets", "tran thi hu snippets", "tran huu hu snippets", "tran thuy vu snippets", "tran thuy luc snippets", "tran thuy nha snippets", "tran thuy hu 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: (((("tran thuy hu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran thuy hu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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