Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dan hoc tran snippets" » "dan hoc tan snippets", "dan hoc tren snippets", "dan boc tran snippets", "van hoc tran snippets", "dan toc tran snippets", "dai hoc tran snippets"

Try widening your search to All Fields.

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