Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
hieu van » hieu va, thien van, lieu va
xa thanh » va thanh, ha thanh, ta thanh
van hai » van ha, van chat, van hanh
cua tre » cuu tre, cua triet, dua tren
hai tuc » thai tuc, hai cuc, thai thuc
su sach » vu sach
nang ma » tang ma, sang ma, nang cao
so sach » so sanh, bo sach, co sach
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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) OR (so sach)) ky nang ma hoi. hieu van hai tuc xa thanh tai ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky nang ma hoi. hieu van hai tuc xa thanh tai ((cua tre) or (cua te))~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ky nang ma hoi. hieu van hai tuc xa thanh tai ((cua tre) or (cua te))*.