Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
van thanh » ban thanh, van tuan
hanh han » hanh nhan, hanh phan, hanh san
san than » sang than, san thanh, ban than
cu dung » su dung, cau duong, duc dung
han cu » han cua, han tu, dan cu

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 han cu dung cong ((san than) or (van thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - hanh han cu dung cong ((san than) OR (van thanh)) cao.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - hanh han cu dung cong ((san than) or (van thanh)) cao*.