Perhaps you should try some spelling variations:
rent line » front line
zhong tai » hong tan, hong hai, zhong zhi
yan clan » das clan, yan guan, yan yuan
clan oil » can oil, plant oil, coal oil
oil rent » oil rents, oil trend, oil real
line log » line flow, line plot, line how
wong yue » wang yue, hong yu
wang » wan, lang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wing) yan clan oil rent line log ((zhong tai) OR (wong yue)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang OR wing) yan clan oil rent line log ((zhong tai) or (wong yue)) ;~".
• Adding a wildcard symbol may retrieve word variants: (wang OR wing) yan clan oil rent line log ((zhong tai) or (wong yue)) ;*.