Perhaps you should try some spelling variations:
thanh trung » thanh tung
vien nganh » vien thanh
thong cong » trong cong, tong cong, thong thong
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong can » cong san, cong tan, cong dan
can chan » dan chan, cam chan, ban chan
chan cau » phan cau, can cau, chinh cau

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