Perhaps you should try some spelling variations:
hanh dinh » thanh dinh, hinh dinh, hanh tinh
van hanh » van thanh, ban hanh, van anh
dinh cuu » dinh chi
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
nang xa » lang xa, nang ma, mang xa
dau tuc » dau tu, dao tuc, cau truc
tuc van » thuc van, truc van, tuc va
cuu tre » cua tre, cau tren, cau treo
va dau » va dao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty ((nang xa) or (nang x)) hoi. lieu va dau tuc van hanh dinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((nang xa) OR (nang x)) hoi. lieu va dau tuc van hanh dinh cuu tre*.