Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc cua hoc snippets" » "toc cua code snippets", "hoc cua hoc snippets", "tac cua hoc snippets", "doc cua hoc snippets", "toc cua hoi snippets", "toc cua thuoc snippets", "toc cua nuoc 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: (((("toc cua hoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc cua hoc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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