Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
trong dang » truong dang, trong dan, trong dong
ho chieu » theo chieu, hoc thieu, doi chieu
chan cau » phan cau, can cau, chinh cau
phan dau » phan tu, hang dau
tung ap » tang ap, tung dan, tung bay
ap dung » xay dung, van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh tung ap dung trong dang ((chan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh tung ap dung trong dang ((chan cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung ap dung trong dang ((chan cau) or (phan dau))*.