Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"han che trac snippets" » "han che tac snippets", "han che tao snippets", "han thi trac snippets", "phan che trac snippets", "nhan che trac snippets", "hanh che trac snippets"

Try widening your search to All Fields.

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