Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trong toan thuc snippets" » "truong toan thuc snippets", "trong tan thuc snippets", "trong hoan thuc snippets", "trong toan hoc snippets", "trong dan thuc snippets", "trong nhan thuc snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("trong toan thuc snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
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