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

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 khi)) sach - hanh trinh van doan phuong doanh hoa cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi khi)) sach - hanh trinh van doan phuong doanh hoa cau*.