Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
cua thuong » cua truong, cua phuong, ca thuong
doi chieu » doc hieu, doi chi, mot chieu
tung cua » trung cua, tuong cua, dung cua
dong tac » cong tac, dong tai, dong bac
tac phan » tac pham, tai phan, tac phat

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 - thanh tung cua thuong dong tac phan tu~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh tung cua thuong dong tac phan tu*.