Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chi tao cac snippets" » "chi tao code snippets", "che tao cac snippets", "chi dao cac snippets", "cai tao cac snippets", "chi tao bac snippets", "chi tao cao snippets", "chi tai cac 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: (((("chi tao cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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