Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"sach so cau snippets" » "mach so cau snippets", "sach lo cau snippets", "sach song cau snippets", "sach so cap snippets", "sach bo cau snippets", "sach co cau snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("sach so cau snippets") or ("python using java snippets"))) or ("locating bung code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sach so cau snippets") OR ("python using java snippets"))) OR ("locating bung code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("sach so cau snippets") or ("python using java snippets"))) or ("locating bung code snippets"))*.