Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong minh » thong tin, hoang minh
hieu manh » chieu xanh, hieu nganh, dieu hanh
chau tinh » cuu tinh, ha tinh, cua tinh
cua thong » cua thuong, cua khong, cua tong
minh toan » tinh toan, manh toan, minh tuan
canh dai » can dai, canh dan, vanh dai
toan cau » toan cao, toan ban, toan tap

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 ((((hieu manh) OR (chieu sach))) OR (chau tinh)) - canh dai cua thong thong minh toan cau~.
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu manh) or (chieu sach))) or (chau tinh)) - canh dai cua thong thong minh toan cau*.