Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
jeong hai » jeong han, jeong mi, jeong nam
hua main » haul main, a main, hua ban
main han » main bank, main am
hong hai » shang hai, zhong tai, dang hai
dong di » dong sin
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: ((yang yang) or (dong di)) ya hua main han min ((jeong hai) OR (hong hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (dong di)) ya hua main han min ((jeong hai) OR (hong hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (dong di)) ya hua main han min ((jeong hai) OR (hong hai)) ;*".