Perhaps you should try some spelling variations:
dieu hien » dieu khien, dieu kien, bieu hien
dai truc » dai thuc, doan truc, dai trung
so sach » so sanh, co sach, hoc sach
bo sach » co sach, hoc sach
ly nang » ky nang, ly hang, ly vang
nang ma » tang ma, sang ma, nang cao
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
vi cua » vai cua, di cua

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: ((so sach) OR (bo sach)) ly nang ma hoa. dieu hien dai truc va danh vi cua vat~.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (bo sach)) ly nang ma hoa. dieu hien dai truc va danh vi cua vat*.