Perhaps you should try some spelling variations:
doi chinh » do chinh, tai chinh, hoc chinh
tranh van » tran van, trinh van, thanh van
tong cong » trong cong, dung cong, dang cong
cong cong » cong dong, trong cong, dung cong
tranh va » trang va, trinh va, thanh va
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chinh sach - canh ((tranh va) OR (tranh van)) ((tong cong) or (cong cong)) dan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chinh sach - canh ((tranh va) OR (tranh van)) ((tong cong) OR (cong cong)) dan phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chinh sach - canh ((tranh va) OR (tranh van)) ((tong cong) or (cong cong)) dan phan cac".
• Adding a wildcard symbol may retrieve word variants: doi chinh sach - canh ((tranh va) OR (tranh van)) ((tong cong) or (cong cong)) dan phan cac*.