Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cac cau cong snippets" » "cac cau code snippets", "cac cac cong snippets", "cac cuu cong snippets", "cac cao cong snippets", "cac mau cong snippets", "bac cau cong snippets", "ca cau cong 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: (((("cac cau cong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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