Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan chan coc snippets" » "dan chan code snippets", "dan gian coc snippets", "dan ca coc snippets", "van chat coc snippets", "dan nhan cuoc snippets", "dan phan cac snippets", "dan chat 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: (((("dan chan coc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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