Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
truong cao » truong dai
duong manh » duong van
hoc thieu » toc thieu, hoc hien
trung cap » trung tam
manh tuan » anh tuan, manh toan, minh tuan
tuan cau » toan cau, quan cau, tuan cu

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - hanh ((trung cap) OR (truong cao)) tuong duong manh tuan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh ((trung cap) OR (truong cao)) tuong duong manh tuan cau*.