Perhaps you should try some spelling variations:
"dan hoc chat snippets" » "dan hoc code snippets", "dan hoc phat snippets", "dan hoc cao snippets", "dan hoc phan snippets", "van hoc chat snippets", "dan toc chat snippets", "dai hoc chat snippets"
"locating bug core snippets" » "locating bug code 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 ("dan hoc chat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dan hoc chat snippets"))) OR ("locating bug core snippets")).
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