Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dao cho can snippets" » "dao cho code snippets", "cao cho can snippets", "dac cho can snippets", "dao ho can snippets", "dao cho cac snippets", "dao cho phan snippets", "dao cho cong 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: (((("dao cho can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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