Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
doanh van » doan van, doanh va, doanh ban
thu nang » thi nang, thu hang, tho nang
thu bang » thu ban, thu hang, chu bang
te sach » toc sach
cao suc » cao su, cao duc
van cuu » van cau, van chu, van cu
suc van » su van, duc van, luc van
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((thu nang) OR (thu bang)) xa hoi. ((hieu va) or (hieu qua)) cao suc van doanh van cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thu nang) OR (thu bang)) xa hoi. ((hieu va) OR (hieu qua)) cao suc van doanh van cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thu nang) OR (thu bang)) xa hoi. ((hieu va) or (hieu qua)) cao suc van doanh van cuu tre*".