Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"dun tran huu snippets" » "den tran huu snippets", "hung tran huu snippets", "dang tran huu snippets", "dun tran duc snippets", "dun tran huu 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: "((((\"dung java java snippets\") OR (\"dun tran huu snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java snippets ) OR ( dun tran huu snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") OR ("dun tran huu snippets"))) OR ("locating bug code snippets"))*.