Perhaps you should try some spelling variations:
thanh trung » thanh tung
doanh phan » doanh nhan, doanh thanh, doanh luan
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
cong cong » cong dong, trong cong, dung cong
doan phan » toan phan, dan phan, doanh nhan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (hien hanh)) - thanh trung cua cong cong ((doan phan) OR (doanh phan)) dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - thanh trung cua cong cong ((doan phan) OR (doanh phan)) dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien hanh)) - thanh trung cua cong cong ((doan phan) OR (doanh phan)) dau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - thanh trung cua cong cong ((doan phan) OR (doanh phan)) dau*.