Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"len trinh le snippets" » "len trinh code snippets", "len tinh le snippets", "tien trinh le snippets", "lap trinh le snippets", "len trinh ly snippets", "len trinh he snippets", "len trinh ve 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: (((("len trinh le snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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