Perhaps you should try some spelling variations:
thanh luan » tranh luan, thanh xuan, thanh tuan
van duong » van dong, van dung, van phong
thanh tap » thanh lap, thanh tai, thanh tay
chi xanh » chi anh, chi danh, chi hanh
cong van » cong vang, song van, cong tan
cong san » cong tac
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - thanh luan van duong ((cong van) OR (cong san)) thanh tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - thanh luan van duong ((cong van) OR (cong san)) thanh tap".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - thanh luan van duong ((cong van) OR (cong san)) thanh tap*.