Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"sach le cau snippets" » "sach le code snippets", "cach le cau snippets", "sach de cau snippets", "sach lo cau snippets", "sach ke cau snippets", "sach le mau snippets", "sach le cap 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: (((("sach le 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: (((("sach le cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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