Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trinh dan cach snippets" » "trinh han cach snippets", "trinh van cach snippets", "trinh san cach snippets", "trinh dan cac snippets", "trinh dan canh snippets", "trinh nhan cach snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: "((((\"dung java java snippets\") OR (\"trinh dan cach snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java snippets ) OR ( trinh dan cach snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") OR ("trinh dan cach snippets"))) OR ("locating bug code snippets"))*.