Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yang » dan yang, yin yang
wang jing » wang ning, wang liang, wang yang
zhong zhi » zhang zhi, hong ghi, zhong tai
yang hua » wang hua, yang hui, ying hua
hua wang » hwa wang, hua jiang, yuan wang
hong hai » shang hai, zhong tai, hong a
jing ji » ying jin
dang » dan, lang, dans

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yidan yang hua wang jing ji ((((dang hai) or (hong tan))) or (((zhong zhi) or (hong hai)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan yang hua wang jing ji ((((dang hai) OR (hong tan))) OR (((zhong zhi) OR (hong hai)))) ;.
• Adding a wildcard symbol may retrieve word variants: wang yidan yang hua wang jing ji ((((dang hai) or (hong tan))) or (((zhong zhi) or (hong hai)))) ;*.