Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hanh vai » hanh vi, hanh va, hanh tai
cuu tre » cua tre, cau tren, cau treo
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
va hanh » van hanh, va thanh, va danh
cac ly » cac ky, cac le, cam ly
ve cac » va cac, vien cac
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 ty nang x 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: su sach ty nang x hoi. hieu ve cac ly va hanh vai ((cuu tre) OR (((cua triet) OR (su triet)))).
• Adding a wildcard symbol may retrieve word variants: su sach ty nang x hoi. hieu ve cac ly va hanh vai ((cuu tre) or (((cua triet) or (su triet))))*.