Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
hanh doanh » hang doanh, chinh doanh, doanh doanh
khong cong » thong cong, khong cang, chong cong
hieu lang » hieu quang, nhieu tang, hieu van
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan tap » phan lap, han tap, pha tap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "thien ((hieu lang) OR (chieu sang)) - hanh doanh cua khong cong tac phan tap~".
• Adding a wildcard symbol may retrieve word variants: thien ((hieu lang) OR (chieu sang)) - hanh doanh cua khong cong tac phan tap*.