Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
phuong doan » phuong loan, phuong hoang, huong dan
hang doanh » hanh doanh, nhung doanh, van doanh
doanh cua » doanh luan
cua bang » chua bang, cua ban, cua dang
doan van » doan va, hoang van, luan van
hoan » hoang, hoa, toan

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 - hang doanh cua bang phuong doan van ban~.
• Adding a wildcard symbol may retrieve word variants: hoan thien thanh - hang doanh cua bang phuong doan van ban*.