Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cac thoi con snippets" » "cac thoi code snippets", "cac toi con snippets", "cac hop con snippets", "cac tro con snippets", "cac thai cong snippets", "cac thi cong snippets", "cac hoi co 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 ("cac thoi con snippets"))) or ("locating bug core snippets"))~.
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