Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan dat hoc snippets" » "dan dat code snippets", "dung dat hoc snippets", "dong dat hoc snippets", "dinh dat hoc snippets", "dan dai hoc snippets", "dan vat hoc snippets", "dan dan hoc 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 dat hoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan dat hoc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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