Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
van hanh » van thanh, ban hanh, van anh
va triet » va thiet, va trien, ve triet
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cau tuc » cau truc, cau tu, cau luc
va hanh » va thanh, va danh, ban hanh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va cau » van cau, va cac, va dau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu va cau tuc ((va hanh) OR (van hanh)) kem ((cua triet) OR (va triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu va cau tuc ((va hanh) OR (van hanh)) kem ((cua triet) or (va triet))~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu va cau tuc ((va hanh) OR (van hanh)) kem ((cua triet) or (va triet))*.