Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
dang xay » dang van, van xay
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty dang » ty xang, ky dang, ty hang
xay hoi » xa hoi, tay hoi, cay phoi
dau tuc » dau tu, dao tuc, cau truc
tuc van » thuc van, truc van, tuc va
va dau » va dao
di cuu » di cau, dinh cuu
di cua » dai cua, doi cua, 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 ty dang xay hoi. lieu va dau tuc van thanh ((di cuu) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty dang xay hoi. lieu va dau tuc van thanh ((di cuu) OR (di cua)) tre*.