Perhaps you should try some spelling variations:
thanh trang » thanh trung, hanh trang, thanh thang
luan phuong » lan phuong, quang phuong, doan phuong
phuong cong » phuong dong, phong cong, phung cong
chieu sach » chinh sach, chiet tach, chieu sang
thanh tang » thanh thang, thanh tung, thanh hang
cong luan » tong luan, cong tuan, dong luan
co sach » bo sach, cuon sach, hoc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((co sach) or (chieu sach)) - ((thanh tang) OR (thanh trang)) luan phuong cong luan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((co sach) OR (chieu sach)) - ((thanh tang) OR (thanh trang)) luan phuong cong luan van ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((co sach) or (chieu sach)) - ((thanh tang) OR (thanh trang)) luan phuong cong luan van ban*".