Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua khong, cua tong
tung cua » trung cua, tuong cua, dung cua
cong tac » cong ty

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 - thanh tung cua thong cong tac ((toan tap) OR (((toan ban) OR (van ban))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh tung cua thong cong tac ((toan tap) or (((toan ban) OR (van ban))))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tung cua thong cong tac ((toan tap) or (((toan ban) OR (van ban))))*.