Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"cao duc tuan snippets" » "cao duc thuan snippets", "cao duc tan snippets", "cao duc toan snippets", "dao duc tuan snippets", "cao suc tuan snippets", "giao duc tuan snippets", "cao duc tuan 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: (((("cao duc tuan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao duc tuan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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