Perhaps you should try some spelling variations:
luan chinh » luan chi, hoan chinh, luat hinh
cong thanh » dong thanh, cong trinh, cong tan
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
anh dung » anh dong, anh huong, sach dung
cong san » cong tac
toan cao » toan ban, toan tap

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 chieu) OR (hoc thieu)) sang - anh dung luan chinh ((cong thanh) OR (cong san)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc thieu)) sang - anh dung luan chinh ((cong thanh) or (cong san)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc thieu)) sang - anh dung luan chinh ((cong thanh) or (cong san)) toan cao*.