Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dan lan hung snippets" » "dan van hung snippets", "dan luan chung snippets", "dan lan phuong snippets", "dan luan hung snippets", "dan lap hung snippets", "dam lan hung snippets"

Try widening your search to All Fields.

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