Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tra van thuc snippets" » "tra va thuc snippets", "tra dan thuc snippets", "tra van thu snippets", "tran van thuc snippets", "ta van thuc snippets", "trang van thuc snippets"

Try widening your search to All Fields.

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