Perhaps you should try some spelling variations:
duong quang » dung quang, luong quang, duong qua
nhung duong » nhung dung, nhung huong, nhung tuong
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh cua » doanh luan
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, hoc dieu
doc hieu » toc thieu, hoc thieu, hoc hien
doan cap » doanh cao, dan ca, doan va
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: ((hoc hieu) or (doc hieu)) manh - hanh doanh cua nhung duong quang ((doan cap) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (doc hieu)) manh - hanh doanh cua nhung duong quang ((doan cap) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hieu) or (doc hieu)) manh - hanh doanh cua nhung duong quang ((doan cap) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (doc hieu)) manh - hanh doanh cua nhung duong quang ((doan cap) OR (toan cao))*.