Perhaps you should try some spelling variations:
canh tran » canh tranh, hanh trang, banh trang
dung cong » dung trong
van thanh » ban thanh, van tuan
thanh cha » thanh ha, thanh nha, thanh phan
hoc sieu » hoc dieu, hoc thieu, hoc hien
tran van » luan van
van dung » van dong, xay dung, tin dung
cong van » cong vang, cong san, song van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sieu) or (toc thieu)) lang - canh tran van dung cong van thanh cha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sieu) OR (toc thieu)) lang - canh tran van dung cong van thanh cha*.