Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
thien thanh » tien thanh, thi thanh, hien hanh
chieu xanh » chieu sach, chieu sang, chieu tinh
cua truong » cua trung, xuan truong, cac truong
tranh cua » doanh cua, manh cua
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien thanh) OR (chieu xanh)) - canh tranh cua truong cong tan van ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien thanh) OR (chieu xanh)) - canh tranh cua truong cong tan van ban*.