Perhaps you should try some spelling variations:
nhanh hoa » nhanh hoan, thanh hoa, khanh hoa
ban nhanh » ban hanh, ban thanh, ban nhan
su triet » su viet, su tien, ve triet
truc ban » thuc ban, truc dan, truc van
sach ky » sac ky, sach y, sach ty
va chat » van chat, va phat, cao chat
so sach » so sanh, bo sach, co sach
ve cham » va cham, ve chat, vu cham
ma hoi » mai hoi, ma hoa, me hoi
hoa su » hoa lu, hoa si, hoa du

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky nang ((ma hoi) or (xa hoi)). hieu ((ve cham) or (va chat)) truc ban nhanh hoa su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang ((ma hoi) OR (xa hoi)). hieu ((ve cham) OR (va chat)) truc ban nhanh hoa su triet.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang ((ma hoi) or (xa hoi)). hieu ((ve cham) or (va chat)) truc ban nhanh hoa su triet*.