Perhaps you should try some spelling variations:
wang liang » wang yang
real line » real life, real lives, rural line
zhong zhi » zhang zhi, hong ghi, zhong tai
than oil » than coal, than only, than one
can only » can one
line log » line flow, line plot, line how
wong yue » wang yue, hong yu

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

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