Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, ve triet
su tien » su kien, su hien, tu tieng
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va hanh » van hanh, va danh, ban hanh
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao

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 nang xa hoi. hieu va cam xuc ((va hanh) or (va thanh)) vai ((su triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu va cam xuc ((va hanh) OR (va thanh)) vai ((su triet) OR (su tien)).
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu va cam xuc ((va hanh) or (va thanh)) vai ((su triet) or (su tien))*.