Perhaps you should try some spelling variations:
thanh data » than data, thanh dam
dong yang » dong hoang, yang yang, dan yang
wang yang » wang yan, wang liang, wang yanling
van thanh » tran thanh, phan thanh, lam thanh
data yang » apa yang
yang jin » yang jie, yang jun, ying jin
hong hai » shang hai, zhong tai, hong tan

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (wang yang)) van thanh data yang jin ((hong hai) OR (dang hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong yang) OR (wang yang)) van thanh data yang jin ((hong hai) or (dang hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((dong yang) OR (wang yang)) van thanh data yang jin ((hong hai) or (dang hai)) ;*.