Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tran van » luan van

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 - ((thanh trung) or (thanh thuong)) cua dung cong tan tran van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((thanh trung) OR (thanh thuong)) cua dung cong tan tran van.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((thanh trung) or (thanh thuong)) cua dung cong tan tran van*.