Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
nhung don » nhung van, nhung bo
don thanh » dong thanh, son thanh, den thanh
tang cua » mang cua, hang cua, tang luan
san cau » van cau, can cau, ran cau
ban cau » bang cau, ban can, van cau

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 quang) or (chieu sang)) - hanh tang cua nhung don thanh ((san cau) OR (ban cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu quang) OR (chieu sang)) - hanh tang cua nhung don thanh ((san cau) OR (ban cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu quang) or (chieu sang)) - hanh tang cua nhung don thanh ((san cau) OR (ban cau))".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu quang) or (chieu sang)) - hanh tang cua nhung don thanh ((san cau) OR (ban cau))*.