Perhaps you should try some spelling variations:
china wang » china yang, china chang, china zhang
long chain » long chemin, long grain, long han
wang yang » wang yan, wang liang, wang yanling
shang hai » shang kai, dang hai, chang ha
yang lin » yang jin, wang lin, yang li
yan yan » yan yuan, yang yang, wang yan
nan yan » nan ya, wang yan, qian yan

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 lang) ((yan yan) OR (nan yan)) china wang yang lin ((long chain) OR (shang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: (wang or lang) ((yan yan) or (nan yan)) china wang yang lin ((long chain) or (shang hai)) ;*.