Perhaps you should try some spelling variations:
dang thanh » dong thanh, dang hanh, hoang thanh
cua triet » cua viet, su triet, va triet
thanh vai » thanh hai, thanh van, thanh tai
thuc dang » thuoc dang, thuc dan, thuc dung
hieu ca » hieu cac, hieu cua, hieu va
nang xa » nang x, nang ma, mang xa
vai cua » dai cua, hai cua, lai cua
lang xa » lang ha, dang xay, lang van
hieu ha » hieu hoa, hieu va, hieu xa
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

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: su sac ky ((nang xa) OR (lang xa)) hoi. ((hieu ha) OR (hieu ca)) am thuc dang thanh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky ((nang xa) or (lang xa)) hoi. ((hieu ha) OR (hieu ca)) am thuc dang thanh vai cua triet~".
• Adding a wildcard symbol may retrieve word variants: su sac ky ((nang xa) or (lang xa)) hoi. ((hieu ha) OR (hieu ca)) am thuc dang thanh vai cua triet*.