Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
hoc thieu » toc thieu, hoc hien
doanh han » doanh nhan, doanh hoan, doanh phan
dong cong » duong cong, dang cong, cong cong
dung cong » dung trong
han luan » hang luan, nhan luan, dan luan
san ban » sang ban, van ban, can 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 thieu tach - doanh han luan ((dong cong) or (dung cong)) thanh san ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tach - doanh han luan ((dong cong) OR (dung cong)) thanh san ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tach - doanh han luan ((dong cong) or (dung cong)) thanh san ban*.