Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
nhiet tach » chiet tach
hoc nhiet » hoc thiet, hoc nghien, hoc hien
cong cong » cong dong, trong cong, dung cong
mang cua » dung cua, ban cua, cong cua
manh cua » doanh cua, ban cua
cong tac » cong ty
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 cong 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 cong tac ((tran van) OR (tranh luan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc nhiet tach - hanh ((mang cua) OR (manh cua)) cong cong tac ((tran van) or (tranh luan))".
• Adding a wildcard symbol may retrieve word variants: hoc nhiet tach - hanh ((mang cua) OR (manh cua)) cong cong tac ((tran van) or (tranh luan))*.