Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
trang cua » tang cua, trung cua, thang cua
tranh cua » doanh cua, manh cua
dang cong » dung cong
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cao » toan cao, thai cao, 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: toc thieu sang - hanh ((trang cua) or (tranh cua)) dang cong tac than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - hanh ((trang cua) OR (tranh cua)) dang cong tac than cao.
• Adding a wildcard symbol may retrieve word variants: toc thieu sang - hanh ((trang cua) or (tranh cua)) dang cong tac than cao*.