Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
van phuong » van phong, va phuong, van chuong
hoc thieu » toc thieu, hoc hien
canh tran » canh tranh, hanh trang, banh trang
doan phan » doanh phan, toan phan, doanh nhan
ho chieu » theo chieu, doi chieu, mot chieu
tran van » luan van
dan phan » dan chan, van phan, dam phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) sach - canh tran van phuong cong ((dan phan) OR (doan phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - canh tran van phuong cong ((dan phan) OR (doan phan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) sach - canh tran van phuong cong ((dan phan) OR (doan phan)) cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - canh tran van phuong cong ((dan phan) OR (doan phan)) cau*.