Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nen hang cau snippets" » "nen hang code snippets", "nen tang cau snippets", "ngan hang cau snippets", "nang hang cau snippets", "nen hang dau snippets", "nen hang ca snippets", "nen nhung cau 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: (((("python using java snippets") or ("nen hang cau snippets"))) or ("locating bug core snippets"))~.
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