Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhung va he snippets" » "nhung va code snippets", "nhung van he snippets", "nhung ba he snippets", "nhung ca he snippets", "nhung va che snippets", "nhung va ghe snippets", "nhung va de 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: (((("nhung va he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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