Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doc phan coc snippets" » "doc phan code snippets", "hoc phan coc snippets", "duc phan coc snippets", "doc than coc snippets", "doc phan cac snippets", "doc phan co snippets", "doc phap coc 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: (((("doc phan coc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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