Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
minh tuan » anh tuan
cua thong » cua thuong, cua khong, cua tong
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
toan tap » toan ban

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 - ((minh tuan) OR (canh tranh)) cua thong cong tan ((toan cao) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((minh tuan) or (canh tranh)) cua thong cong tan ((toan cao) or (toan tap))*.