Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"lam tinh duc snippets" » "may tinh duc snippets", "ha tinh duc snippets", "ban tinh duc snippets", "lam minh duc snippets", "lam dinh duc snippets", "lam ninh duc snippets", "lam tinh duc 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: (((("lam tinh duc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam tinh duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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