Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc dong cu snippets" » "luc dong code snippets", "luu dong cu snippets", "duc dong cu snippets", "luc cong cu snippets", "luc dong cua snippets", "luc dong cuc snippets", "luc dong cum 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: (((("python using java snippets") or ("luc dong cu snippets"))) or ("locating bug core snippets"))~.
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