Perhaps you should try some spelling variations:
real liang » real long, real line
wang wang » wang yang, wang liang, wang yong
wang than » wang shawn, wang yuhan, wang ban
than coal » than modal, than cost, than oil
coal real » coal seam
liang wei » xiang wei, zhang wei, wang wei
zhong zhi » zhang zhi, hong ghi, zhong tai
wang yue » wong yue, wang hua, wang he
yan » yang, ryan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang wang than coal real liang wei ((zhong zhi) or (((wang yue) or (wang yan)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang than coal real liang wei ((zhong zhi) OR (((wang yue) OR (wang yan)))) ;.
• Adding a wildcard symbol may retrieve word variants: wang wang than coal real liang wei ((zhong zhi) or (((wang yue) or (wang yan)))) ;*.