Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
va triet » va thiet, va trien, ve triet
hanh vai » hanh vi, hanh va, hanh tai
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
ty nang » ky nang, ty xang, ty hang
su sach » so sach, vu sach
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: su sach ty nang xa hoi. hieu ve cac ly va hanh vai ((cuu tre) or (((va triet) or (su triet))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ve cac ly va hanh vai ((cuu tre) OR (((va triet) OR (su triet)))).
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu ve cac ly va hanh vai ((cuu tre) or (((va triet) or (su triet))))*.