Perhaps you should try some spelling variations:
thanh trung » thanh tung
tranh luan » trinh luat, doanh luan, tang luan
trinh luan » trinh luat, trinh quan, trinh han
trung tap » trung tam, trung cap, rung tap
tap thanh » lap thanh, tap tranh, tp thanh
thi hanh » thi thanh
cong tac » cong ty
doi thi » doi thoi, do thi, doi khi

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

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