Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thieu xanh » chieu xanh, hieu manh, thien anh
tranh chap » tranh cua, trinh chat
hoc thieu » toc thieu, hoc hien
tran chap » tran chau, trang cham, tran nhat
ninh cua » sinh cua, dinh cua, hinh cua
tinh cua » trinh cua, sinh cua, tinh chat
cong tan » cong tac, cong san, cong thanh

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 - tinh ((ninh cua) OR (tinh cua)) nhung cong tan ((tran chap) OR (tranh chap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - tinh ((ninh cua) OR (tinh cua)) nhung cong tan ((tran chap) or (tranh chap))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - tinh ((ninh cua) OR (tinh cua)) nhung cong tan ((tran chap) or (tranh chap))*.