Perhaps you should try some spelling variations:
"dung von choi snippets" » "dung von code snippets", "dong von choi snippets", "dung cong choi snippets", "dung va choi snippets", "dung van choi snippets", "dung von khoa snippets", "dung van cho snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung von choi snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung von choi snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung von choi snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
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