Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
dan han » dan chan, dan than, dan hanh
han tap » han tai, toan tap, nhan tai

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) OR (doi chieu)) xanh - canh tranh cua ((nhung cong) OR (tong cong)) dan han tap~.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chieu)) xanh - canh tranh cua ((nhung cong) or (tong cong)) dan han tap*.