Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
manh tung » manh hung, thanh tung
chua nang » chua xang, kha nang, cuu nang
luong anh » luong manh, vuong anh, duong anh
tuan cau » toan cau, quan cau, tuan cu
chuc » thuc, chu, phuc

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: hoc thieu sach - manh tung ((chua nang) OR (chuc nang)) luong anh tuan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - manh tung ((chua nang) or (chuc nang)) luong anh tuan cau*.