Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
nhanh thang » nhanh thanh, nhanh quang, hanh trang
thieu sang » chieu sang, thieu quang, hieu lang
cua thuong » cua truong, ca thuong, cua huong
cua phuong » cuu phuong, cuc phuong, luan phuong
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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) OR (thieu khang)) - nhanh thang ((cua thuong) or (cua phuong)) cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sang) OR (thieu khang)) - nhanh thang ((cua thuong) OR (cua phuong)) cong san than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sang) OR (thieu khang)) - nhanh thang ((cua thuong) or (cua phuong)) cong san than cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sang) OR (thieu khang)) - nhanh thang ((cua thuong) or (cua phuong)) cong san than cau*.