Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong hung hoc snippets" » "dong huong hoc snippets", "dang hung hoc snippets", "cong hung hoc snippets", "dong chung hoc snippets", "dong khung hoc snippets", "dong nhung hoc 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 (\"dong hung hoc snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java snippets ) OR ( dong hung hoc snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") OR ("dong hung hoc snippets"))) OR ("locating bug code snippets"))*.