Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
thanh ve » hanh ve, thanh va, thanh vien
su sach » so sach, vu sach
co sach » bo sach, cuon sach, hoc sach
nang co » nang cao, nang doc, nang noi
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
tuc ban » thuc ban, truc ban, tu ban
ve cam » ve cham, ve cac, va cam
co hoi » co hoc, co loi
y nang » ky nang, ly nang, v nang
thiet » thieu

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) or (co sach)) y nang co hoi. hieu ve cam tuc ban thanh ve ((cua triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (co sach)) y nang co hoi. hieu ve cam tuc ban thanh ve ((cua triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (co sach)) y nang co hoi. hieu ve cam tuc ban thanh ve ((cua triet) or (va thiet))*.