Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dan hoc hon snippets" » "van hoc hon snippets", "dan toc hon snippets", "dai hoc hon snippets", "dan hoc hong snippets", "dan hoc hoa snippets", "dan hoc hoi 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 hon snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dan hoc hon snippets"))) OR ("locating bugs code snippets")).
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