Perhaps you should try some spelling variations:
duong cong » dung cong, luong cong, duong trong
tranh van » tran van, trinh van, thanh van
van duong » van dong, van dung, van phong
ho trieu » mot trieu, 25 trieu, ho chieu
30 trieu » 25 trieu
bang cau » hang cau, nang cao, hang ca
bang cac » nang cao, hang ca, dung cac

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 (30 trieu)) tinh - canh tranh van duong cong dong ((bang cau) OR (bang cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho trieu) OR (30 trieu)) tinh - canh tranh van duong cong dong ((bang cau) OR (bang cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho trieu) or (30 trieu)) tinh - canh tranh van duong cong dong ((bang cau) OR (bang cac))".
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) or (30 trieu)) tinh - canh tranh van duong cong dong ((bang cau) OR (bang cac))*.