Perhaps you should try some spelling variations:
khong thong » thong thong, khong trong, thong thuong
theo chieu » theo tieu, ho chieu, theo chu
hanh doanh » hang doanh, chinh doanh, doanh doanh
thuc hieu » thuc hien, thu hien, thuc tien
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
van phan » van phong, van thanh, luan phan
van han » van hanh, van nhan, van hoan

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

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