Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
doi chiet » doi chieu, doi chi, doi viet
trong tan » trong quan, trong cac, trong ca
cua dung » cua dang, cua dong, qua dung
tran van » luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chiet tach - ((hanh tranh) OR (hanh trang)) cua dung trong tan tran van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chiet tach - ((hanh tranh) OR (hanh trang)) cua dung trong tan tran van".
• Adding a wildcard symbol may retrieve word variants: doi chiet tach - ((hanh tranh) OR (hanh trang)) cua dung trong tan tran van*.