Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc toi hoat snippets" » "toc toi code snippets", "toc toan hoat snippets", "toc thi hoa snippets", "toc thi hoan snippets", "toc noi hoat snippets", "toc thai hoat snippets", "toan toi hoat 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 toi hoat 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 toi hoat snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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