Perhaps you should try some spelling variations:
yong hoang » dong hoang, hong hong, kong hang
wang yong » wang yang, wang hyoung, wang yan
shang hai » shang kai, dang hai, chang ha
des rent » des real
wong yue » wang yue, hong yu
di rent » der rent, oil rent
lang li » liang li, ling li, tang li

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong hoang ((di rent) or (des rent)) lang li ((shang hai) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong hoang ((di rent) OR (des rent)) lang li ((shang hai) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yong hoang ((di rent) or (des rent)) lang li ((shang hai) or (wong yue)) ;*.