Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
trinh chat » tinh chat, trinh luat, trinh han
tinh dinh » trinh dinh, tinh ninh, tinh binh
ve nhung » va nhung, tu nhung
cong lap » cong luan, cong lang, cong tac
dinh ve » dinh ket, dinh 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) OR (chieu sang)) - tinh dinh ve nhung cong lap trinh chat~.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu sang)) - tinh dinh ve nhung cong lap trinh chat*.