Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu sang » chieu sach, chieu xanh, hieu lang
thong tac » thong cac, tuong tac, thong tai
tac doanh » cac doanh, tac danh, toan doanh
doanh cao » doanh co, doanh bao, doanh cho
dien anh » tieng anh, dien dan
trinh va » trinh van, trinh vat, trinh ve
va thong » va thuong, va phuong, he thong

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((dien anh) OR (chieu sang)) - hanh trinh va thong thong tac doanh cao~.
• Adding a wildcard symbol may retrieve word variants: theo ((dien anh) or (chieu sang)) - hanh trinh va thong thong tac doanh cao*.