Perhaps you should try some spelling variations:
xiaodong huang » xiaotong zhang
xiaodong tang » xiaoyang tang, xiaotong zhang
china yang » china ying, china wang, china chang
hong hong » hong kong, hong jong, hong ng
yang eng » yang yang, yang jing, tan eng
eng hong » kong hong, ong chong, wang hong
wang » wing
tang » thang
tan » than

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 OR wan) OR lang) ((xiaodong tang) OR (xiaodong huang)) china yang eng hong hong tan ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang or wan) or lang) ((xiaodong tang) OR (xiaodong huang)) china yang eng hong hong tan ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang or wan) or lang) ((xiaodong tang) OR (xiaodong huang)) china yang eng hong hong tan ;*.