Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tu nhan doi snippets" » "tu nhan code snippets", "tu nhan dai snippets", "tu nhan dot snippets", "tu nhan loai snippets", "tue nhan doi snippets", "cu nhan doi snippets", "tu ngan doi 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 doi 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 doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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