Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"do thu nhan snippets" » "do thu nhap snippets", "do thu nhat snippets", "do thu ngan snippets", "do thuc nhan snippets", "doi thu nhan snippets", "do thuy nhan snippets", "do thu nhan 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: (((("do thu nhan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do thu nhan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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