Perhaps you should try some spelling variations:
phuong doanh » phuong danh, phuong doan, phuong hoang
hanh trinh » canh tranh, hanh chinh
doanh hoan » doanh doanh, doanh khoa, doanh nhan
doi chieu » doc hieu, ho chieu, mot chieu
trinh van » trinh han, trinh quan, trinh toan
van doan » van doanh, van toan, van hoan
hoan cau » toan cau, hoa cau, hoang cao
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (doi chi)) sach - hanh trinh van doan phuong doanh hoan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) sach - hanh trinh van doan phuong doanh hoan cau*.