Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"lang dan dat snippets" » "lang van dat snippets", "tang dan dat snippets", "dang dan dat snippets", "lang dung dat snippets", "lang dong dat snippets", "lang dinh dat snippets", "lang dan 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: "((((\"lang dan dat snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( lang dan dat snippets ) OR ( dung java java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("lang dan dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.