Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thieu sang » chieu sang, thieu khang, thieu quang
nhung cong » dung cong, thong cong, hang cong
thien van » thi van
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
cong anh » cong danh, dong anh, hong anh
tuan cau » toan cau, quan cau, tuan cu

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 sang) OR (thien van)) - hanh trinh cua nhung cong anh tuan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sang) or (thien van)) - hanh trinh cua nhung cong anh tuan cau*.