Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
thuan cong » thuat cong, thuan phong, thuan trong
thuong ban » thuong han, thuong lan, tuong ban
doi chieu » doc hieu, doi chi, ho chieu
tuan cong » luan cong, tran cong, toan cong
ban phan » ban phap, van phan, ban than
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - thanh tung ((tuan cong) OR (thuan cong)) thuong ban phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh tung ((tuan cong) OR (thuan cong)) thuong ban phan cau*".