Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
cua thuong » ca thuong, cua huong, cuu thuong
cua phuong » cuu phuong, cuc phuong, luan phuong
cua truong » cua trung, xuan truong, cac truong
doi chieu » doc hieu, doi chi, ho chieu
hanh mang » nhanh mang, hanh trang, nhanh lang
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran cao » toan cao, tran chau, trang cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - hanh mang ((((cua thuong) OR (cua phuong))) or (cua truong)) cong tac tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - hanh mang ((((cua thuong) OR (cua phuong))) OR (cua truong)) cong tac tran cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - hanh mang ((((cua thuong) OR (cua phuong))) or (cua truong)) cong tac tran cao*".