Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc nhan ca snippets" » "luc nhan code snippets", "luc nhat ca snippets", "cu nhan ca snippets", "tue nhan ca snippets", "luc nhan cua snippets", "luc nhan va snippets", "luc nhap ca 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: (((("luc nhan ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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