Perhaps you should try some spelling variations:
liang tan » liang sun, wing tan
liang dan » king dan, liang sun, wang dan
real lang » real long, real line, real plan
oil real » oil coal, oil rent
hong hai » shang hai, zhong tai, dang hai
lang li » liang li, ling li, tang li
hong yu » wong yue

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 ((liang tan) OR (liang dan)) oil real lang li ((hong hai) OR (hong yu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((liang tan) OR (liang dan)) oil real lang li ((hong hai) or (hong yu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((liang tan) OR (liang dan)) oil real lang li ((hong hai) or (hong yu)) ;*.