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
vuong tan » vuong tuan, vuong tat, duong tan
doc hieu » toc thieu, hoc thieu, hoc hien
uong tan » duong tan, cong tan, nong tan
tran tan » tran tuan, tran van, tran thanh

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) OR (vuong tan))) or (dung tai)) tran tan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh doanh cua trung ((((uong tan) OR (vuong tan))) OR (dung tai)) tran tan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh doanh cua trung ((((uong tan) OR (vuong tan))) or (dung tai)) tran tan".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh doanh cua trung ((((uong tan) OR (vuong tan))) or (dung tai)) tran tan*.