Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
tuan nhung » quan nhung, tuan hung, thuat nhung
nhung cong » dung cong, thong cong, hang cong
tranh luan » trinh luan, trinh luat, doanh luan
hieu manh » chieu xanh, hieu nganh, dieu hanh
tran xuan » tran quang, tran van
hoc hieu » hoc thieu, hoc hien, doc hieu
cong tac » cong ty
tran tap » toan tap, tran tan, tran tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - thanh trung tuan nhung cong tac ((tran tap) or (((tranh luan) or (tran xuan))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - thanh trung tuan nhung cong tac ((tran tap) OR (((tranh luan) OR (tran xuan)))).
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - thanh trung tuan nhung cong tac ((tran tap) or (((tranh luan) or (tran xuan))))*.