Perhaps you should try some spelling variations:
gas plant » gas plants
zhong tai » hong tan, hong hai, zhong zhi
wang tan » wang yan, wang ban, wang dan
can lang » can laugh, can plant, lang lang
wong yue » wang yue, hong yu
tan can » man can, tan tan, tin can
can oil » can soils, can only, corn oil

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang tan can oil ((can lang) or (gas plant)) li ((zhong tai) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang tan can oil ((can lang) OR (gas plant)) li ((zhong tai) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: wang tan can oil ((can lang) or (gas plant)) li ((zhong tai) or (wong yue)) ;*.