Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua dieu
so sach » so sanh, bo sach, co sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
va danh » va dinh, va hanh, dia danh
va dan » ca dan, va dao, va dau
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y nang ma hoi. hieu ve cam tuc ((va danh) or (va dan)) lai ((cua viet) OR (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang ma hoi. hieu ve cam tuc ((va danh) OR (va dan)) lai ((cua viet) OR (cua vat))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y nang ma hoi. hieu ve cam tuc ((va danh) or (va dan)) lai ((cua viet) OR (cua vat))*".