Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung lam oi snippets" » "dung lam code snippets", "dung luan oi snippets", "dung tai oi snippets", "dung dat oi snippets", "dung lam gi snippets", "dung lam di snippets", "dung lam thoi 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 ("dung lam oi snippets"))) or ("locating bug core snippets"))~.
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