Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
canh doanh » chinh doanh, doanh doanh, kinh doanh
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
cong vang » cong lang, cong quang, cong ngang
vang tuan » van tuan, vong tuan, quang tuan
ho chieu » theo chieu, hoc thieu, doi chieu
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc hien)) sach - ((canh doanh) OR (hanh doanh)) cua thong cong vang tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc hien)) sach - ((canh doanh) OR (hanh doanh)) cua thong cong vang tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc hien)) sach - ((canh doanh) OR (hanh doanh)) cua thong cong vang tuan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc hien)) sach - ((canh doanh) OR (hanh doanh)) cua thong cong vang tuan cau*.