Perhaps you should try some spelling variations:
trung tuan » trung thanh, tran tuan, truong thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
toc hieu » toc thieu, doc hieu, hoc thieu
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan cau » toan cau, doan dau, doan cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu manh - thanh ((trung tuan) or (trung tam)) dung cong tap doan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - thanh ((trung tuan) OR (trung tam)) dung cong tap doan cau.
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - thanh ((trung tuan) or (trung tam)) dung cong tap doan cau*.