Perhaps you should try some spelling variations:
thanh luan » tranh luan, thanh xuan, thanh tuan
nhung cong » dung cong, thong cong, hang cong
hien tinh » khien tinh, thien tinh, bien tinh
van nhung » van nhuong, va nhung, van hung
tan khang » van khang, tao khang, tinh khang
khang ban » hang ban, khang benh, khang chan
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien tinh - thanh luan van nhung cong tan khang ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hien tinh - thanh luan van nhung cong tan khang ban*.