Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
chua nang » chuc nang, chua xang, kha nang
ho chieu » theo chieu, hoc thieu, doi chieu
cua nang » cua dang, cua hang, cua nong
cong tac » cong ty
nhanh ha » thanh hoa, thanh hai, khanh hoa
nhan ha » nhan hoa, nhan va, nha ha

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