Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
hoc chinh » hoan chinh, hoc sinh, hoc kinh
hanh tram » hanh tam, thanh tran, thanh tra
van nhung » van nhuong, va nhung, van hung
cong nang » cong ngang, cong lang, cong nong
bang cau » hang cau, bang cac, nang cao
ban cau » ban can, van cau, ban 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 chinh sach - ((hanh tram) or (hanh trang)) van nhung cong nang ((ban cau) or (bang cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - ((hanh tram) OR (hanh trang)) van nhung cong nang ((ban cau) OR (bang cau)).
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - ((hanh tram) or (hanh trang)) van nhung cong nang ((ban cau) or (bang cau))*.