Perhaps you should try some spelling variations:
su sach » so sach, vu sach
cua tre » cua te, cua triet, dua tren
tinh va » tich va, trinh van, trinh vat
va tinh » may tinh
cuu tre » cau tren, cau treo
hieu va » lieu va, hieu qua
ky dang » ky nang, ky danh
luc va » duc va, tuc va, loc va
_ dang » _ dan, 2 dang, _ danh
va coc » va cuoc, va cac, va hoc

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: su sach ((ky dang) OR (_ dang)) xa hoi. hieu va coc luc va tinh va ((cua tre) OR (cuu tre))~.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky dang) or (_ dang)) xa hoi. hieu va coc luc va tinh va ((cua tre) or (cuu tre))*.