Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, thong thong, phong chong
hieu manh » chieu xanh, hieu nganh, dieu hanh
doanh cua » doanh luan
tong cong » trong cong, cong cong, dung cong
van thanh » ban thanh, van tuan
thanh cao » thanh ca, thanh cac, thanh thao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chieu sang)) - hanh doanh cua ((thong cong) OR (tong cong)) van thanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - hanh doanh cua ((thong cong) OR (tong cong)) van thanh cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sang)) - hanh doanh cua ((thong cong) OR (tong cong)) van thanh cao".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - hanh doanh cua ((thong cong) OR (tong cong)) van thanh cao*.