Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"danh cho cu snippets" » "danh cho code snippets", "danh cho chu snippets", "danh cho ca snippets", "danh cho tu snippets", "doanh cho cu snippets", "dan cho cu snippets", "dinh cho cu 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: (((("danh cho cu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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