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
csinh cua » chinh cua, tinh cua, trinh cua
sinh cua » manh cua, dinh cuu, sinh va
van toan » van tuan, van thanh, manh toan
van tan » van tuan, van ban, van tai

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 ((csinh cua) OR (sinh cua)) nhung cong ((van toan) OR (van tan)) cau~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((csinh cua) or (sinh cua)) nhung cong ((van toan) or (van tan)) cau*.