Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
trinh cua » trinh luat, trinh quan, trinh luan
thanh tap » thanh tai, thanh tay, thanh tam
thanh lap » thanh san, phan lap, thanh hai
tinh cua » sinh cua, tinh chat, tranh cua
cong van » cong vang, cong san, song 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 thieu xanh - hanh ((trinh cua) OR (tinh cua)) nhung cong van ((thanh tap) OR (thanh lap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((trinh cua) or (tinh cua)) nhung cong van ((thanh tap) OR (thanh lap))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((trinh cua) or (tinh cua)) nhung cong van ((thanh tap) OR (thanh lap))*.