Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh tranh » canh tranh, hanh trang, lanh tranh
luan hung » luan chung, lan hung, luan ung
hung dung » nhung dung, phung dung, ung dung
dung minh » duong minh, dung ninh, dung vinh
minh toan » tinh toan, manh toan, minh tuan
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - ((hanh tranh) or (hanh trinh)) luan hung dung minh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - ((hanh tranh) OR (hanh trinh)) luan hung dung minh toan ban.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - ((hanh tranh) or (hanh trinh)) luan hung dung minh toan ban*.