Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
canh doanh » hanh doanh, chinh doanh, kinh doanh
thong cong » trong cong, tong cong, thong thong
va thong » va thuong, va phuong, he thong
cong van » cong vang, cong san, song van
theo bo » thao bo, theo doi, theo don
van van » van ban, tan van, san van
van cau » van dau, van hau, van chat
so toc » so hoc, co toc, ho toc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so toc) or (theo bo)) sach - ((canh doanh) or (doanh doanh)) va thong cong van van cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so toc) OR (theo bo)) sach - ((canh doanh) OR (doanh doanh)) va thong cong van van cau.
• Adding a wildcard symbol may retrieve word variants: ((so toc) or (theo bo)) sach - ((canh doanh) or (doanh doanh)) va thong cong van van cau*.