Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
nam thuc » nam thuoc, am thuc, nam thu
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, dam thuc
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
y nang » ky nang, ly nang, v nang
va dan » ca dan, va dao, va dau
va cua » va chua, via cua, ca cua

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 y nang xa hoi. hieu ve ((cam tuc) or (nam thuc)) ((va hanh) or (va dan)) va cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ve ((cam tuc) OR (nam thuc)) ((va hanh) OR (va dan)) va cua viet.
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ve ((cam tuc) or (nam thuc)) ((va hanh) or (va dan)) va cua viet*.