Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chat » trinh luat, trinh han, trinh phan
cuoi viet » nguoi viet, co viet, nuoc viet
trinh cao » trinh chao, trinh co, trinh cau
hoi viet » hai viet, oi viet, thai viet
luong va » dung va
hoc viet » hoc hien
co cuoi » co nuoi, cho cuoc, co nguoi
cac cam » cad cam, cac cau, cac ham
luat va » xuat va, luat ve, suat va
bang va » hang va, trang va, dang van
cac cap » cao cap, cac cau, cac tap
cac cay » cac cau, tac cay, cac cach
ca cay » cua cay, ca cac, ca cao
co hoi » 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 cao ((bang va) or (ban va)) ((cac cap) or (cac cam)) co cuoi viet nam ) or ((( chuong ((trinh chat) OR (tinh chat)) luong va ((cac cay) or (ca cay)) co hoi viet nam ) or ( chuong ((trinh chat) OR (tinh chat)) luat va ((cac cay) or (ca cay)) co hoc viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cao ((bang va) OR (ban va)) ((cac cap) OR (cac cam)) co cuoi viet nam ) OR ((( chuong ((trinh chat) OR (tinh chat)) luong va ((cac cay) OR (ca cay)) co hoi viet nam ) OR ( chuong ((trinh chat) OR (tinh chat)) luat va ((cac cay) OR (ca cay)) co hoc viet nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh cao ((bang va) or (ban va)) ((cac cap) or (cac cam)) co cuoi viet nam ) or ((( chuong ((trinh chat) OR (tinh chat)) luong va ((cac cay) or (ca cay)) co hoi viet nam ) or ( chuong ((trinh chat) OR (tinh chat)) luat va ((cac cay) or (ca cay)) co hoc viet nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cao ((bang va) or (ban va)) ((cac cap) or (cac cam)) co cuoi viet nam ) or ((( chuong ((trinh chat) OR (tinh chat)) luong va ((cac cay) or (ca cay)) co hoi viet nam ) or ( chuong ((trinh chat) OR (tinh chat)) luat va ((cac cay) or (ca cay)) co hoc viet nam ))))*.