Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dan lat hung snippets" » "dan lan hung snippets", "dan la hung snippets", "dan luat chung snippets", "dan luat hung snippets", "dan dat hung snippets", "dan lap hung snippets"

Try widening your search to All Fields.

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