Perhaps you should try some spelling variations:
yuhan cheng » yuan cheng, yunnan sheng
wang yuhan » wang luhang, wang yan, wang yidan
dang haji » dang hai, dato haji
tan yang » dan yang, tan ying, tan yong
ran ying » fan ying, tan ying, jin ying
yang yi » yang jui
yang xi » yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tan yang) or (ran ying)) wang yuhan cheng ((yang yi) or (((yang xi) OR (yang di)))) dang haji ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tan yang) OR (ran ying)) wang yuhan cheng ((yang yi) OR (((yang xi) OR (yang di)))) dang haji ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tan yang) or (ran ying)) wang yuhan cheng ((yang yi) or (((yang xi) OR (yang di)))) dang haji ;*".