Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu quang » thieu quang, hieu quan, hieu qua
cua nhung » va nhung
trong van » trong cac
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
luong va » dung va
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: ho ((chieu sang) or (hieu quang)) - anh tang cua nhung ((luong va) or (trong van)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu quang)) - anh tang cua nhung ((luong va) OR (trong van)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu quang)) - anh tang cua nhung ((luong va) or (trong van)) toan cau*.