Perhaps you should try some spelling variations:
yan guang » yang guang, yan guan, gan guan
guang hua » wang hua, gang hu, guang eu
shang hai » shang kai, dang hai, chang ha
yang jun » yang jui, pang jun, yang jin
hong hai » zhong tai, dang hai, hong tan
yan tin » yuan ting, yang jin, yang lin
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan guang hua (ren or rent) ((yan tin) or (yang jun)) ((hong hai) OR (shang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan guang hua (ren OR rent) ((yan tin) OR (yang jun)) ((hong hai) OR (shang hai)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan guang hua (ren or rent) ((yan tin) or (yang jun)) ((hong hai) OR (shang hai)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yan guang hua (ren or rent) ((yan tin) or (yang jun)) ((hong hai) OR (shang hai)) ;*.