Perhaps you should try some spelling variations:
thanh hoa » thanh pho
hieu van » hieu va, thien van, lieu va
nhanh ha » thanh hai, khanh hoa, nhan va
ban tuc » ban tu, ban tum, ban thuoc
so sach » so sanh, bo sach, co sach
ly nang » ky nang, ly hang, ly vang
cua tre » cua te, cuu tre, cua triet
co hoi » co hoc, co loi
tuc va » thuc va, truc va, tuc xa
v nang » va nang, vu nang, van nang

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 ((ly nang) OR (v nang)) co hoi. hieu van ban tuc va ((nhanh ha) OR (thanh hoa)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((ly nang) or (v nang)) co hoi. hieu van ban tuc va ((nhanh ha) OR (thanh hoa)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: so sach ((ly nang) or (v nang)) co hoi. hieu van ban tuc va ((nhanh ha) OR (thanh hoa)) cua tre*.