Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"dung da duoc snippets" » "dung dat duoc snippets", "dung dan duoc snippets", "dung dau duoc snippets", "dung tao duoc snippets", "dung hoa duoc snippets", "dung da duoc 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 da duoc snippets\") OR (\"hang java java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung da duoc snippets ) OR ( hang java java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung da duoc snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets"))*.