Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hinh thai » sinh thai, tinh thai, dinh thi
cong van » cong vang, cong san, song van
tan cao » toan cao, tao cao, tan ca
tay cao » tao cao, tay co, toan cao

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 - hanh ((hinh thai) OR (chinh tri)) nhung cong van ((tan cao) OR (tay cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((hinh thai) or (chinh tri)) nhung cong van ((tan cao) OR (tay cao))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((hinh thai) or (chinh tri)) nhung cong van ((tan cao) OR (tay cao))*.