Perhaps you should try some spelling variations:
liang wei » xiang wei, wang wei, fang wei
zhang wei » zhen wei
zhong tai » hong tan, hong hai, zhong zhi
wang ban » wang dan, wang yang, bang bang
ban than » van thanh
than oil » than coal, than only, than one
oil coal » oil cost, oil oil, oil can
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 ban than oil coal ((liang wei) OR (zhang wei)) ((zhong tai) OR (wang yan)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ban than oil coal ((liang wei) OR (zhang wei)) ((zhong tai) OR (wang yan)) ;".
• Adding a wildcard symbol may retrieve word variants: wang ban than oil coal ((liang wei) OR (zhang wei)) ((zhong tai) OR (wang yan)) ;*.