Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cay » trinh cau, trinh may, trinh cac
cay dan » cac dan, ca dan, cay lanh
cac tap » cac cap, cac tac, cac tai
dan va » doan va, dan ca, ban va
co soi » cot soi, co so, co loi
co hoi » co hoc, co loi

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

• Performing a fuzzy search may retrieve terms with similar spellings: chuong trinh cay dan va cac tap ((co soi) OR (co hoi)) viet nam~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chuong trinh cay dan va cac tap ((co soi) OR (co hoi)) viet nam".
• Adding a wildcard symbol may retrieve word variants: chuong trinh cay dan va cac tap ((co soi) OR (co hoi)) viet nam*.