Perhaps you should try some spelling variations:
cong nghien » cong nghiep, duong nghien, trong nghien
nghien tong » nghiep trong, nghiem tuong, nghiep thong
chieu xanh » chieu sach, chieu sang, chieu tinh
chinh cong » thanh cong, trinh cong
doi chieu » doc hieu, doi chi, mot chieu
tong cong » trong cong, cong cong, dung cong
cong san » cong tac
san tai » sang tai, van tai, han tai
tai cao » thai cao, tao cao, tai sao

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 xanh - chinh cong nghien tong cong san tai cao~.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - chinh cong nghien tong cong san tai cao*.