Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
luan thong » luan phong, luan tuong, luat thong
hoc thiet » hoc thuyet, hoc hien, toc thieu
hoc thieu » toc thieu, hoc hien
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van
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 thieu)) tach - hanh doanh luan thong ((cong van) OR (song van)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc thieu)) tach - hanh doanh luan thong ((cong van) OR (song van)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thiet) or (hoc thieu)) tach - hanh doanh luan thong ((cong van) OR (song van)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc thieu)) tach - hanh doanh luan thong ((cong van) OR (song van)) toan ban*.