Perhaps you should try some spelling variations:
nhiet tach » chiet tach
tranh luan » trinh luan, trinh luat, doanh luan
hoc nhiet » hoc thiet, hoc nghien, hoc hien
hanh mang » nhanh mang, hanh trang, nhanh lang
cong cong » cong dong, trong cong, dung cong
tranh ban » trinh ban, tranh hang, tran van
mang cua » manh cua, dung cua, ban cua
cong tac » cong ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nhiet tach - hanh mang cua cong cong tac ((tranh ban) OR (tranh luan))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc nhiet tach - hanh mang cua cong cong tac ((tranh ban) OR (tranh luan))".
• Adding a wildcard symbol may retrieve word variants: hoc nhiet tach - hanh mang cua cong cong tac ((tranh ban) OR (tranh luan))*.