Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trung tuan » trung thanh, tran tuan, truong thanh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan ban » doanh ban, toan ban, doan 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 thieu xanh - thanh ((trung tuan) or (trung tam)) dung cong tap doan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((trung tuan) OR (trung tam)) dung cong tap doan ban*.