Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
chinh luan » chinh ngan, trinh luan, binh luan
luan ban » luan van, luan san, luan han
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
tran cau » tran chau, toan cau, ran cau
ho hieu » ho chieu, hoi hieu, nho hieu

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