Perhaps you should try some spelling variations:
chiet tach » chieu sach
canh trang » canh tranh, hanh trang, banh trang
thong cong » trong cong, tong cong, thong thong
luan phan » luan van, luan hoan
doan phan » doanh phan, toan phan, doanh nhan
ho chiet » ho chieu, ho thiet, hoc thiet
trang va » tran van, hang va
va thong » va thuong, va phuong, he thong
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 chiet tach - canh trang va thong cong ((((dan phan) or (luan phan))) or (doan phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - canh trang va thong cong ((((dan phan) OR (luan phan))) OR (doan phan)) cau.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - canh trang va thong cong ((((dan phan) or (luan phan))) or (doan phan)) cau*.