Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
lv nang » ly nang
dau tuc » dau tu, dao tuc, cau truc
tuc van » thuc van, truc van, tuc va
hanh de » hanh ve, hanh kem
cuu tre » cua tre, cau tren, cau treo
v nang » va nang, vu nang, van nang
va dau » va dao
de cuu » de cua

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 ((v nang) or (lv nang)) xa hoi. lieu va dau tuc van hanh de cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((v nang) OR (lv nang)) xa hoi. lieu va dau tuc van hanh de cuu tre*.