Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu sang » chieu sach, chieu xanh, hieu lang
tac thuong » tai thuong, tam thuong, tac thong
doi chieu » doc hieu, doi chi, mot chieu
cong tac » cong ty
cong sat » cong suat, cong san, cong hat
sat phan » sat nhan, vat phan, xuat phan

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