Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh than » hanh han, hanh nhan, hanh phan
dong cong » duong cong, dung cong, dang cong
than cua » nhan cua, thai cua, ban cua
cua dong » chua dong, cua cong, cua dang
cong tan » cong tac, cong san, cong thanh
nhan tai » hang tai, van tai, toan tai
han tap » han tai, toan tap, nhan tao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chinh sach) or (chieu sang)) - hanh than cua dong cong tan ((han tap) or (nhan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chinh sach) OR (chieu sang)) - hanh than cua dong cong tan ((han tap) OR (nhan tai)).
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (chieu sang)) - hanh than cua dong cong tan ((han tap) or (nhan tai))*.