Perhaps you should try some spelling variations:
yidan yang » dan yang
gong gang » hong gang, gong qiang, gongs gong
jeong shu » jeong su, cong shu
yin yang » ying yang, yin fang, yin hang
jong min » gong min, song min, song ming
yi yang » yi gang, yu yang, ying yang
di l » de l, dr l, i l

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 ((((yidan yang) OR (yin yang))) OR (yi yang)) di l ((gong gang) OR (jong min)) jeong shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((((yidan yang) or (yin yang))) or (yi yang)) di l ((gong gang) or (jong min)) jeong shu ;*.