Perhaps you should try some spelling variations:
hanh khang » nhanh thang, thanh thang, van khang
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong san » cong tac
san than » sang than, san thanh, ban than
than cao » toan cao, thai cao, than cap
cu dung » cau duong, duc dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chieu sang)) - hanh khang ((cu dung) OR (su dung)) cong san than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - hanh khang ((cu dung) OR (su dung)) cong san than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sang)) - hanh khang ((cu dung) OR (su dung)) cong san than cao".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - hanh khang ((cu dung) OR (su dung)) cong san than cao*.