Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ban mach cau snippets" » "ban mach code snippets", "ban sach cau snippets", "ranh mach cau snippets", "ban hanh cau snippets", "ban bach cau snippets", "ban mach cao snippets", "ban mach 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: (((("python using java snippets") or ("ban mach cau snippets"))) or ("locating bug core snippets"))~.
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