Perhaps you should try some spelling variations:
thanh luan » tranh luan, thanh xuan, thanh tuan
hoang cong » hang cong, hoang long, hoang vuong
lieu tinh » trieu tinh, diep tinh, bien tinh
van hoang » van hoan, quan hoang, tran hoang
tai phan » tai thanh, tai phong, tai ngan
tac pham » thuc pham, san pham
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - thanh luan van hoang cong ((tai phan) or (tac pham)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - thanh luan van hoang cong ((tai phan) OR (tac pham)) tap.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - thanh luan van hoang cong ((tai phan) or (tac pham)) tap*.