Perhaps you should try some spelling variations:
tien nhien » thien nhien, hien nhien, thien chien
nhien quan » thien quan, hien quan, nhien xuan
tranh luan » trinh luan, trinh luat, doanh luan
dung cong » dung trong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: tien nhien quan - thanh ((tranh luan) or (tran quang)) dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tien nhien quan - thanh ((tranh luan) OR (tran quang)) dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: tien nhien quan - thanh ((tranh luan) or (tran quang)) dung cong tac toan cau*.