Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dam tim mach snippets" » "dai tim mach snippets", "dau tim mach snippets", "dam tien mach snippets", "dam tim sach snippets", "dam tim cach snippets", "dam tim manh snippets"

Try widening your search to All Fields.

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