Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hanh doanh » hang doanh, chinh doanh, doanh doanh
cong huong » cong thuong, cong luong, cong hung
doanh cua » doanh luan
dan toan » van toan, dan than, manh toan
toan ban » van ban
hoan » hoang, hoa, soan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoan thien thanh - hanh doanh cua cong huong dan toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoan thien thanh - hanh doanh cua cong huong dan toan ban*.