Perhaps you should try some spelling variations:
guan chen » sudan chen, yuan cheng, gren chen
shang hai » shang kai, dang hai, chang ha
wang gan » wang yan, wang ban, wang dan
gan guan » yan guan, quan guan, fan guon
chen tan » chen tain, chen yang, chen jian
tan yong » tan hong, tan kong, tan yang
hong hai » zhong tai, dang hai, hong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang gan guan chen tan yong kim ((hong hai) or (shang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang gan guan chen tan yong kim ((hong hai) OR (shang hai)) ;*.