Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yidan, fang yuan
yang guang » yang yang, yang liang
cheng han » chen hao
min shang » bin zhang, jin chang, min hong
shang kai » shang hai
yan guan » gan guan, yan yuan, yihan guan
han min » han men, kan min, chan ming

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

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