Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luan khoan tai snippets" » "luan hoan tai snippets", "luan khoa tai snippets", "luan phan tai snippets", "luan khoan bai snippets", "luan khon tai snippets"
"dung java java snippets" » "dung va java snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"luan khoan tai snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( luan khoan tai snippets ) OR ( dung java java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("luan khoan tai snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets"))*.