Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hieu van » hieu va, thien van, lieu va
va thanh » ban thanh, va tinh, le thanh
ky lang » ky nang, ky dang, ky tang
hoc cac » hoc cao
cau xuc » cam xuc, cau luc, cau truc
van cau » van dau, van hau, van chat
lang xa » lang ha, dang xay, lang van
va hanh » van hanh, va danh, ban hanh
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc cac ky lang xa hoi. hieu van cau xuc ((va hanh) or (((va thanh) or (gia thanh)))) vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc cac ky lang xa hoi. hieu van cau xuc ((va hanh) OR (((va thanh) OR (gia thanh)))) vi cua viet.
• Adding a wildcard symbol may retrieve word variants: hoc cac ky lang xa hoi. hieu van cau xuc ((va hanh) or (((va thanh) or (gia thanh)))) vi cua viet*.