Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong va cu snippets" » "dong va code snippets", "dung va cu snippets", "dong ha cu snippets", "luong va cu snippets", "dong va cau snippets", "dong va chu snippets", "dong va su 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: (((("dong va cu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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