Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
thong cong » trong cong, tong cong, thong thong
hoc chieu » hoc thieu, hoc hien, hoc dieu
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
tranh ban » trinh ban, tranh hang, tranh luan
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tran ban » tran van, toan ban, tran bai

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

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