Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
chua nang » chuc nang, chua xang, kha nang
ho chieu » hoc thieu, doi chieu, mot chieu
cua nang » cua dang, cua hang, cua nong
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan
nhan ha » nhanh ha, nhan hoa, nhan va

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: ((ho chieu) OR (theo chieu)) sach - thanh trung ((cua nang) OR (chua nang)) cong tac nhan ha~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sach - thanh trung ((cua nang) or (chua nang)) cong tac nhan ha~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) sach - thanh trung ((cua nang) or (chua nang)) cong tac nhan ha*.