Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"lua hoi dat snippets" » "luat hoi dat snippets", "cua hoi dat snippets", "lua doi dat snippets", "lua hoi dap snippets", "lua hoi dan snippets", "lua hoc dat snippets", "lua hoi dat slippers"
"locating bug code snippets" » "locating bug code slippers", "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: "((((\"lua hoi dat snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( lua hoi dat snippets ) OR ( dung java java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("lua hoi dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.