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
mang cua » dung cua, ban cua, cong cua
manh cua » doanh cua, ban cua
dong tac » cong tac, dong tai, dong bac
tran van » luan van

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) or (manh cua)) cong dong tac ((tran van) or (tranh luan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nhiet tach - hanh ((mang cua) OR (manh cua)) cong dong tac ((tran van) OR (tranh luan)).
• Adding a wildcard symbol may retrieve word variants: hoc nhiet tach - hanh ((mang cua) or (manh cua)) cong dong tac ((tran van) or (tranh luan))*.