Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dac nhan cau snippets" » "dac nhan code snippets", "cac nhan cau snippets", "danh nhan cau snippets", "ca nhan cau snippets", "dac nhanh cau snippets", "dac phan cau snippets", "dac nhan sau 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: (((("dac nhan cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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