Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tran manh » tran minh, tran thanh, tran van
tang cua » mang cua, hang cua, tang luan
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sang) or (chieu sach)) - hanh tang cua nhung cong thanh ((than ban) or (tran manh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chieu sach)) - hanh tang cua nhung cong thanh ((than ban) OR (tran manh)).
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chieu sach)) - hanh tang cua nhung cong thanh ((than ban) or (tran manh))*.