Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong luong » cong thuong, nang luong, cong dong
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong lang » cong vang, cong quang, cong ngang
than cau » toan cau, phan cau, than cap

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