Perhaps you should try some spelling variations:
nhanh hai » nhanh thai, thanh hai, nhanh ha
ban nhanh » ban hanh, ban thanh, ban nhan
su triet » su viet, su tien, ve triet
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky tang xa hoi. hieu ve cam duc ban nhanh hai ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky tang xa hoi. hieu ve cam duc ban nhanh hai ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su sac ky tang xa hoi. hieu ve cam duc ban nhanh hai ((cua tre) or (su triet))*.