Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
cuong tap » luong tap, cong tac, luong tai
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua hang » cua dang, cua nhung, cua cong
cong tap » cong tac, cong tan, tong tap
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu lang) OR (chieu sang)) - anh tang cua hang ((cong tap) or (cuong tap)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu lang) OR (chieu sang)) - anh tang cua hang ((cong tap) OR (cuong tap)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu lang) OR (chieu sang)) - anh tang cua hang ((cong tap) or (cuong tap)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu lang) OR (chieu sang)) - anh tang cua hang ((cong tap) or (cuong tap)) toan cau*.