Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dam tao mach snippets" » "dam tao bac snippets", "dam tao may snippets", "dam tim mach snippets", "dam trao mach snippets", "dao tao mach snippets", "dam bao mach snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dam tao mach snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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