Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doc cau cua snippets" » "doc cau code snippets", "hoc cau cua snippets", "doc cao cua snippets", "doc chat cua snippets", "doc cau qua snippets", "doc ca cua snippets", "doc cu cua 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: (((("doc cau cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc cau cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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