Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cua nhan can snippets" » "cua nhan code snippets", "ca nhan can snippets", "cua ngan can snippets", "cua nha can snippets", "cua nhan chan snippets", "cua nhan dan snippets", "cua nhan van 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: (((("cua nhan can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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