Perhaps you should try some spelling variations:
cong thanh » cong trinh, cong tan, truong thanh
dong thanh » truong thanh
mot trieu » mot chieu, mot tri, mon triet
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
ho trieu » 25 trieu, 30 trieu, ho chieu
tang cua » mang cua, hang cua, tang luan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho trieu) OR (mot trieu)) tinh - hanh tang cua nhung ((cong thanh) or (dong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho trieu) OR (mot trieu)) tinh - hanh tang cua nhung ((cong thanh) OR (dong thanh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho trieu) OR (mot trieu)) tinh - hanh tang cua nhung ((cong thanh) or (dong thanh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) OR (mot trieu)) tinh - hanh tang cua nhung ((cong thanh) or (dong thanh)) toan ban*.