Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh cua » doanh luan
cua trong » cua truong, cua trung, qua trong
doc hieu » toc thieu, hoc thieu
cong tan » cong tac, cong san, cong thanh
tran cao » tran chau, trang cho, tranh cac
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: ((doc hieu) OR (hoc hien)) xanh - hanh doanh cua trong cong tan ((tran cao) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc hien)) xanh - hanh doanh cua trong cong tan ((tran cao) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc hien)) xanh - hanh doanh cua trong cong tan ((tran cao) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (hoc hien)) xanh - hanh doanh cua trong cong tan ((tran cao) or (toan cao))*.