Perhaps you should try some spelling variations:
yang july » yang judy, yang jui, yang jun
yang hua » wang hua, yang hui, ying hua
yang lin » yang jin, wang lin, yang liang
hong hai » shang hai, zhong tai, dang hai
yang li » yang di, yang yi, tang li
yang xi » yang di, yang yi, yang jui
wang » wing, wan, lang

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: wang yan ((yang hua) OR (yang july)) gene ((((yang lin) OR (yang li))) OR (yang xi)) hong hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan ((yang hua) or (yang july)) gene ((((yang lin) OR (yang li))) or (yang xi)) hong hai ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan ((yang hua) or (yang july)) gene ((((yang lin) OR (yang li))) or (yang xi)) hong hai ;*.