Perhaps you should try some spelling variations:
chinh luan » chinh ngan, trinh luan, binh luan
hieu quang » thieu quang, hieu qua, diep quang
hieu quan » hieu qua, lieu quan, thien quan
luan ban » luan van, luan san, luan han
ban cong » bang cong, van cong, phan cong
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu quang) or (hieu quan)) - hanh chinh luan ban cong tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu quang) OR (hieu quan)) - hanh chinh luan ban cong tan tran cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu quang) or (hieu quan)) - hanh chinh luan ban cong tan tran cau*.