Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
tran luan » tranh luan, tran xuan, tran tuan
luan cong » luat cong, luong cong, luan chung
cong cong » cong dong, trong cong, dung cong
khoa kham » kho khan, khoa than
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong san, cong tan, huong dan
dan khoa » dang khoa, da khoa, san khoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hieu) or (toc thieu)) manh - thanh tran luan cong cong dan khoa kham~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (toc thieu)) manh - thanh tran luan cong cong dan khoa kham*.