Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
trang cua » tang cua, trung cua, thang cua
tranh cua » doanh cua, manh cua
dung cong » dung trong
cong ban » cong bang, cong san, cong tan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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) or (tranh cua)) dung cong ban ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh ((trang cua) OR (tranh cua)) dung cong ban ((than cau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh ((trang cua) or (tranh cua)) dung cong ban ((than cau) or (than cap))*.