Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
khong cong » thong cong, khong cang, chong cong
trinh toan » tinh toan, thanh toan, trinh han
doi chieu » doc hieu, doi chi, mot chieu
doanh cua » doanh luan
ho chieu » theo chieu, hoc thieu, mot chieu
toan cao » toan ban, toan tap

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

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