Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, truong thanh
dong doanh » dung doanh, trong doanh, doanh doanh
chua xang » chua nang, chuc nang, chu bang
tran tuan » tran xuan, tran quang, tran thanh
bang dong » bang song, bang cong, lang dong
doanh van » doan van, doanh va, doanh ban
chu xanh » chu manh, chieu xanh, chuc danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) OR (chua xang)) - hanh ((trung tuan) or (tran tuan)) bang dong doanh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chua xang)) - hanh ((trung tuan) OR (tran tuan)) bang dong doanh van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) OR (chua xang)) - hanh ((trung tuan) or (tran tuan)) bang dong doanh van ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) OR (chua xang)) - hanh ((trung tuan) or (tran tuan)) bang dong doanh van ban*.