Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
so trieu » mot trieu, so dieu, so lieu
hoc dieu » hoc thieu, hoc hien
tranh va » tranh van, trang va, trinh va
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so trieu) or (hoc dieu)) tinh - canh tranh va ((nhung cong) OR (thong cong)) dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so trieu) OR (hoc dieu)) tinh - canh tranh va ((nhung cong) OR (thong cong)) dan chan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so trieu) or (hoc dieu)) tinh - canh tranh va ((nhung cong) OR (thong cong)) dan chan cau".
• Adding a wildcard symbol may retrieve word variants: ((so trieu) or (hoc dieu)) tinh - canh tranh va ((nhung cong) OR (thong cong)) dan chan cau*.