Perhaps you should try some spelling variations:
thang cong » thanh cong, thang long, thong cong
dang thanh » dong thanh, dang hanh, hoang thanh
thanh phan » thanh pho, thanh san, thanh toan
hieu lang » chieu sang, hieu quang, nhieu tang
hanh luan » khanh luan, hang luan, hanh luat
van thang » van thanh, van khang, van hang
cong dang » cong dong, cong dan, cong dung
hieu van » hieu va, thien van, lieu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((hieu van) OR (hieu lang)) - hanh luan van thang cong dang thanh phan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((hieu van) OR (hieu lang)) - hanh luan van thang cong dang thanh phan*".