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