Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
luat nhung » luat chung, luat thuong, thuat nhung
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
van thanh » ban thanh, van tuan
manh toan » thanh toan, anh tuan, tinh toan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh trinh luat nhung cong ((van thanh) OR (manh toan)) ban~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh trinh luat nhung cong ((van thanh) or (manh toan)) ban*.