Perhaps you should try some spelling variations:
thanh trung » thanh tung
phuong dan » phuong danh, phuong doan, huong dan
do chinh » hoc chinh, mo hinh, do dinh
trung co » trung bo, trong co, truong cao
than cau » toan cau, phan cau, than cap
toan tap » toan ban
co bang » cao bang, con bang, co ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: do chinh sach - thanh trung co bang phuong dan ((than cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: do chinh sach - thanh trung co bang phuong dan ((than cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: do chinh sach - thanh trung co bang phuong dan ((than cau) or (toan tap))*.