Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
thien thanh » tien thanh, thi thanh, chien tranh
chieu sang » chieu sach, chieu xanh, hieu lang
cua truong » cua trung, xuan truong, cac truong
hien hanh » dieu hanh
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thien thanh) OR (hien hanh))) OR (chieu sang)) - canh tranh cua truong cong tan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((thien thanh) OR (hien hanh))) or (chieu sang)) - canh tranh cua truong cong tan van ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((((thien thanh) OR (hien hanh))) or (chieu sang)) - canh tranh cua truong cong tan van ban*.