Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tu nhan cua snippets" » "tu nhan code snippets", "tu nhat cua snippets", "tu nhan luc snippets", "tu nhan su snippets", "tue nhan cua snippets", "cu nhan cua snippets", "tu ngan cua snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tu nhan cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tu nhan cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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