Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
doanh bat » danh bat, doanh tai, doanh va
toc sach » hoc sach, doc sach, thuoc sach
dang xay » dang van, van xay
cuu tre » cua tre, cau tren, cau treo
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
tuc va » thuc va, truc va, tuc xa
y dang » ky dang, 2 dang, _ dang
ve cam » ve cham, ve cac, va cam

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) or (toc sach)) y dang xay hoi. hieu ve cam tuc va ((doanh van) or (doanh bat)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) y dang xay hoi. hieu ve cam tuc va ((doanh van) OR (doanh bat)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) y dang xay hoi. hieu ve cam tuc va ((doanh van) or (doanh bat)) cuu tre*.