Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc dang » thuoc dang, thuc dan, thuc dung
thanh hai » thanh phan, thanh hoa, thanh san
hanh hai » nhanh hai, hang hai, hanh tai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
hieu ha » hieu hoa, hieu ca, hieu xa
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang x hoi. ((hieu ha) or (hieu va)) am thuc dang ((hanh hai) OR (thanh hai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. ((hieu ha) OR (hieu va)) am thuc dang ((hanh hai) OR (thanh hai)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. ((hieu ha) or (hieu va)) am thuc dang ((hanh hai) OR (thanh hai)) cua triet*".