Perhaps you should try some spelling variations:
wang liang » wang yang
liang than » liang tan, liang thow, liang dan
than coal » than modal, than cost, than oil
coal real » coal seam
zhong tai » hong tan, hong hai, zhong zhi
wong yue » wang yue, hong yu
long li » song li, long live, long life

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang liang than coal real long li ((zhong tai) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang than coal real long li ((zhong tai) OR (wong yue)) ;*.