Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhat va cau snippets" » "nhat va code snippets", "nhan va cau snippets", "chat va cau snippets", "nhat ve cau snippets", "nhat van cau snippets", "nhat va cac snippets", "nhat va dau 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: (((("nhat va cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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