Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung luat » truong luat, truong luan, trinh luat
nhung cong » thong cong, hang cong, nhung don
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, mot chieu
tan phan » toan phan, than phan, van phan

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