Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung hoc ban snippets" » "dong hoc ban snippets", "dung thuoc ban snippets", "trung hoc ban snippets", "dung hoc bang snippets", "dung hoc dan snippets", "dung hoc bai snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung hoc ban snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung hoc ban snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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