Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong cho bo snippets" » "dong cho code snippets", "dung cho bo snippets", "dong co bo snippets", "dong hoc bo snippets", "dong cho bao snippets", "dong cho ba snippets", "dong cho ro 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: (((("dong cho bo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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