Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
danh luan » doanh luan, tranh luan, doanh quan
cua hang » cua dang, cua nhung, cua cong
dan luan » doanh luan, dung luan, tang luan

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 tach - hanh tranh cua hang cong ((danh luan) or (dan luan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet tach - hanh tranh cua hang cong ((danh luan) OR (dan luan)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc thiet tach - hanh tranh cua hang cong ((danh luan) or (dan luan)) ban*.