Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
hanh vai » hanh vi, hanh va, hanh tai
su triet » su viet, su tien, ve triet
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
ve cac » va cac, vien cac
cac ly » cac ky, cac le, cam ly

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 xa hoi. hieu ve cac ly va hanh vai ((cuu tre) or (((cua triet) or (su triet))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu ve cac ly va hanh vai ((cuu tre) OR (((cua triet) OR (su triet)))).
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu ve cac ly va hanh vai ((cuu tre) or (((cua triet) or (su triet))))*.