Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hieu xanh » chieu xanh, hieu manh, hieu nganh
doanh cua » doanh luan
cua trung » cua truong, xuan trung, cua nhung
doc hieu » toc thieu, hoc thieu, hoc hien
uong tan » duong tan, vuong tan, cong tan
tran tan » tran tuan, tran thanh, trang tuan
tran van » luan van

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 xanh - hanh doanh cua trung uong tan ((tran tan) OR (tran van))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh doanh cua trung uong tan ((tran tan) OR (tran van))".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh doanh cua trung uong tan ((tran tan) OR (tran van))*.