Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
ban thanh » ban hanh, ban hang
tu cach » tu cac
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cua triet, dua tren
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
cao hoc » co hoc, cho hoc, chat hoc
su sach » so sach, vu sach
cuu tre » cau tren, cau treo
ve cac » va cac, vien cac

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: ((tu cach) OR (su sach)) ky nang cao hoc. hieu ve cac xuc ban thanh tai ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (su sach)) ky nang cao hoc. hieu ve cac xuc ban thanh tai ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) ky nang cao hoc. hieu ve cac xuc ban thanh tai ((cua tre) OR (cuu tre))*.