Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
ban hanh » ban hang
su sach » so sach, vu sach
vu nang » vuc nang, va nang, vu dang
cao hoc » co hoc, cho hoc, chat hoc
xuc ban » duc ban, cuc ban, quoc ban
hanh ha » nhanh ha, thanh ha, hanh hoa
ha chau » hat chau, a chau, lai chau
ve cam » ve cham, ve cac, va cam
chuc » thuc, chu, chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((vu nang) or (chuc nang)) cao hoc. hieu ((ve cam) or (va cac)) xuc ban hanh ha chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((vu nang) OR (chuc nang)) cao hoc. hieu ((ve cam) OR (va cac)) xuc ban hanh ha chau triet.
• Adding a wildcard symbol may retrieve word variants: su sach ((vu nang) or (chuc nang)) cao hoc. hieu ((ve cam) or (va cac)) xuc ban hanh ha chau triet*.