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 tro snippets" » "dong hoc tro snippets", "dung thuoc tro snippets", "trung hoc tro snippets", "dung hoc trong snippets", "dung hoc tren snippets", "dung cuoc tro snippets"

Try widening your search to All Fields.

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