Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien quang
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung dung » phuong dung, ung dung, thong dung
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tang cua » mang cua, hang cua, tang luan
dung dan » dung dat, dung san, tung dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu quang) or (chieu xanh)) - hanh tang cua nhung dung dan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu quang) OR (chieu xanh)) - hanh tang cua nhung dung dan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu quang) or (chieu xanh)) - hanh tang cua nhung dung dan ((toan cau) or (toan ban))*.