Perhaps you should try some spelling variations:
quan guan » quan guo, yan guan
gan guan » yan guan, fan guon, gui guan
tuan hua » tuan vu, yuan hui
yin yang » ying yang, yi yang, yin fang
3.2 long » 3.2 land
tan hua » wang hua, tan chia, tan puay
long du » long d, long do, long run
h yang » _ yang, hui yang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((quan guan) or (gan guan)) ((tan hua) or (tuan hua)) ((yin yang) or (h yang)) 3.2 long du ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((quan guan) OR (gan guan)) ((tan hua) OR (tuan hua)) ((yin yang) OR (h yang)) 3.2 long du ;.
• Adding a wildcard symbol may retrieve word variants: ((quan guan) or (gan guan)) ((tan hua) or (tuan hua)) ((yin yang) or (h yang)) 3.2 long du ;*.