Perhaps you should try some spelling variations:
trong trinh » trong tinh, trang trinh, trong thinh
chieu sang » chieu sach, chieu xanh, nhieu tang
trinh toan » tinh toan, thanh toan, trinh han
hieu lang » hieu quang, nhieu tang, hieu van
luan dung » lan dung, luan dong, luan hung
anh dang » anh dong, anh bang, anh danh
anh dung » anh dong, anh huong, sach dung
toan tap » toan ban

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: ho ((chieu sang) OR (hieu lang)) - ((anh dang) OR (anh dung)) luan dung trong trinh toan tap~.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - ((anh dang) or (anh dung)) luan dung trong trinh toan tap*.