Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thieu » toc thieu, hoc hien
trang cua » tranh cua, tang cua, trung cua
cua thong » cua thuong, cua khong, cua tong
cong ban » cong bang, cong tan, cong dan
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - hanh trang cua thong ((cong ban) or (cong san)) hang va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh trang cua thong ((cong ban) OR (cong san)) hang va.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh trang cua thong ((cong ban) or (cong san)) hang va*.