Perhaps you should try some spelling variations:
doanh ban » doanh bat, doanh van, doanh nhan
nham thuc » nhan thuc, nam thuc, nham thu
cau tren » cu tren, dau tren, ca tren
danh vai » danh sai, danh va, doanh van
ty trang » ta trang, te trang, tu trang
trang xa » trang va, trang ha, trong xa
cuu tre » cua tre, cau treo
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
thuc va » thuc vat, thuc dan, thuc day
ve nham » ve nha, ve cham
hieu ve » hieu va, hieu van

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 trang xa hoi. hieu ve nham thuc va ((danh vai) or (doanh ban)) ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty trang xa hoi. hieu ve nham thuc va ((danh vai) OR (doanh ban)) ((cuu tre) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: su sach ty trang xa hoi. hieu ve nham thuc va ((danh vai) or (doanh ban)) ((cuu tre) or (cau tren))*.