Perhaps you should try some spelling variations:
dien quang » diep quang, trien quang, lien quan
trung cua » truong cua, trung tuan, trung cap
tang luan » dung luan
moi dien » mai dien, moi dieu, doi dien
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: moi dien quang - hanh ((trung cua) or (tang luan)) nhung ((cong dan) or (cong tan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: moi dien quang - hanh ((trung cua) OR (tang luan)) nhung ((cong dan) OR (cong tan)) toan tap.
• Adding a wildcard symbol may retrieve word variants: moi dien quang - hanh ((trung cua) or (tang luan)) nhung ((cong dan) or (cong tan)) toan tap*.