Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc sach cau snippets" » "toc sach code snippets", "hoc sach cau snippets", "doc sach cau snippets", "thuoc sach cau snippets", "toc sach cap snippets", "toc sach dau snippets", "toc sach mau 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 sach cau 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 sach cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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