Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
cong thanh » dong thanh, cong trinh, cong tan
thanh hang » thanh hoang, thanh thang, tranh hang
dang cong » dung cong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
van dang » van dong, van dung, van nang
hang dau » hang va, hang tai

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 xanh - tranh luan van dang cong thanh hang dau~.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - tranh luan van dang cong thanh hang dau*.