Perhaps you should try some spelling variations:
zhong tai » hong tan, hong hai, zhong zhi
shang hai » shang kai, dang hai, chang ha
wang dan » wang ban, wang yidan, wang yang
than oil » than coal, than only, than one
oil coal » oil cost, oil oil, oil can
qiang li » liang li, qiang niu, ling li
wang yue » wong yue, wang hua, wang he

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang dan) OR (wang yan)) than oil coal qiang li ((((zhong tai) or (shang hai))) or (wang yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang dan) OR (wang yan)) than oil coal qiang li ((((zhong tai) OR (shang hai))) OR (wang yue)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang dan) OR (wang yan)) than oil coal qiang li ((((zhong tai) or (shang hai))) or (wang yue)) ;".
• Adding a wildcard symbol may retrieve word variants: ((wang dan) OR (wang yan)) than oil coal qiang li ((((zhong tai) or (shang hai))) or (wang yue)) ;*.