Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cat phan cac snippets" » "cat phan code snippets", "sat phan cac snippets", "vat phan cac snippets", "cac phan cac snippets", "cat nhan cach snippets", "cat phan dau snippets", "cat phan lap 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: (((("cat phan cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cat phan cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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