Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien nhanh » thien thanh, tien thanh, dien thanh
hien xanh » chieu xanh, hien khanh, khien canh
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
cong doan » cong dan, cong hoan, dong doanh
doan phan » doanh phan, toan phan, dan phan
cua tong » cua cong, cua dong, cua nong
phan dau » phan tu, hang dau

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