Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, hanh dung
thanh hung » thanh huong, thanh tung, thanh trung
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (toc thieu)) sang - ((thanh dung) OR (thanh hung)) cua thong cong dan phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hien) or (toc thieu)) sang - ((thanh dung) OR (thanh hung)) cua thong cong dan phan tu~".
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (toc thieu)) sang - ((thanh dung) OR (thanh hung)) cua thong cong dan phan tu*.