Perhaps you should try some spelling variations:
thanh trung » thanh tung
khong cong » khong cang, chong cong, khong con
thong cong » trong cong, tong cong, thong thong
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
thanh lap » thanh san, phan lap, thanh hai
than cap » khan cap, thanh cac, than cua

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 hanh - thanh trung cua ((khong cong) or (thong cong)) ban ((than cap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - thanh trung cua ((khong cong) OR (thong cong)) ban ((than cap) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - thanh trung cua ((khong cong) or (thong cong)) ban ((than cap) or (thanh lap))*.