Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trong » hanh trang, anh trong, hinh trong
anh truong » manh truong, anh thuong, anh trong
ho chieu » theo chieu, hoc thieu, doi chieu
tac giai » tac gia, cac giai, tap giai
rac thai » sac thai, toc thai, bac thay
ap dung » xay dung, van dung

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 - ((hanh trong) OR (anh truong)) ap dung trong ((tac giai) OR (rac thai)) cau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh trong) or (anh truong)) ap dung trong ((tac giai) or (rac thai)) cau*.