Perhaps you should try some spelling variations:
zhong tai » hong tan, zhong zhi
coal lang » coal plant
wang ban » wang dan, wang yang, bang bang
bann oil » can oil
oil coal » oil cost, oil oil, oil can
hong hai » shang hai, dang hai, hong tan
wong yue » wang yue, hong yu
lang li » liang li, ling li, tang li

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) or (wang yan)) bann oil coal lang li ((((hong hai) or (zhong tai))) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang ban) OR (wang yan)) bann oil coal lang li ((((hong hai) OR (zhong tai))) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: ((wang ban) or (wang yan)) bann oil coal lang li ((((hong hai) or (zhong tai))) or (wong yue)) ;*.