Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
chau tinh » cuu tinh, ha tinh, cua tinh
luan phan » luan van, luan hoan
phan cong » thanh cong
cong manh » cong danh, duong manh, cong thanh
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap
ho chau » ha chau, ho chu, o chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chau tinh - hanh doanh luan phan cong manh ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chau tinh - hanh doanh luan phan cong manh ((toan tai) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho chau tinh - hanh doanh luan phan cong manh ((toan tai) or (toan cao))*.