Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tra chat hoi snippets" » "tra chat code snippets", "tran chau hoi snippets", "tran nhat hoi snippets", "hoa chat hoi snippets", "tra chat hoa snippets", "tra chat hoc snippets", "tra cham hoi 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: (((("tra chat hoi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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