Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"mau hanh cac snippets" » "mau hanh code snippets", "mau han cac snippets", "mau hinh cac snippets", "mau xanh cac snippets", "mau hang cac snippets", "mau hanh cat snippets", "mau nhanh cay 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: (((("mau hanh cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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