Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yang » dan yang, yin yang
gongs gong » gang gong, zong gong
gong gang » hong gang, gong qiang, deng gang
song ming » song bing, song min, gong min
jeong shu » jeong su, cong shu
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 di l ((((gong gang) OR (gongs gong))) OR (song ming)) jeong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yidan yang di l ((((gong gang) OR (gongs gong))) or (song ming)) jeong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yidan yang di l ((((gong gang) OR (gongs gong))) or (song ming)) jeong shu ;*.