Perhaps you should try some spelling variations:
tchong cong » thong cong, trong cong, cong cong
chong cong » cong cong, thong cong, cuong cong
hinh sach » chinh sach, sinh sach, dinh sach
manh dung » manh hung, manh tung, anh dung
dung phan » dung nhan, dung luan, dung ha
vang than » sang than, van than, cang thang
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: mo hinh sach - manh dung phan ((chong cong) OR (tchong cong)) vang than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "mo hinh sach - manh dung phan ((chong cong) OR (tchong cong)) vang than cap".
• Adding a wildcard symbol may retrieve word variants: mo hinh sach - manh dung phan ((chong cong) OR (tchong cong)) vang than cap*.