Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dan tay trac snippets" » "dan tap trac snippets", "dan toan trac snippets", "dan ty trach snippets", "ban tay trac snippets", "dao tay trac snippets", "gian tay trac snippets"

Try widening your search to All Fields.

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