Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
hien sang » hien trang, khien bang, chieu sang
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
thanh bai » thanh hai, thanh oai, thanh bac
thanh tai » thanh hai, thanh toan, doanh tai
cong tac » cong ty

You may be able to get more results by adjusting your search query.

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