Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
hoc thuyet » hoc chuyen
hanh doanh » hang doanh, doanh doanh, kinh doanh
luan thong » luan phong, luan tuong, luat thong
thong cong » trong cong, tong cong, thong thong
hoc thiet » hoc thieu, hoc hien, toc thieu
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thiet) or (hoc thuyet)) tach - ((hanh doanh) OR (chinh doanh)) luan thong cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc thuyet)) tach - ((hanh doanh) OR (chinh doanh)) luan thong cong van toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thiet) or (hoc thuyet)) tach - ((hanh doanh) OR (chinh doanh)) luan thong cong van toan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc thuyet)) tach - ((hanh doanh) OR (chinh doanh)) luan thong cong van toan ban*.