Perhaps you should try some spelling variations:
china wang » china yang, china chang, china zhang
yang yang » wang yang
chang ann » chang min, chang won, chang yun
gong min » jong min, song min, gong meng
min hong » amin hong, tin hong, min hyoung
yi gang » ii gang, i gang, li gang
xu gong » wu gong, xu gang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((yang yang) OR (wang yan))) OR (china wang))) OR (yi gang)) chang ann xu gong min hong w ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((yang yang) OR (wang yan))) or (china wang))) or (yi gang)) chang ann xu gong min hong w ;~".
• Adding a wildcard symbol may retrieve word variants: ((((((yang yang) OR (wang yan))) or (china wang))) or (yi gang)) chang ann xu gong min hong w ;*.