Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chat » tinh chat, trinh luat, trinh han
trinh cao » trinh chao, trinh co, tinh cao
trinh cau » trinh chao, trinh tu, trinh han
cay cong » cac cong, cao cong, cau cong
doi viet » dai viet, hoi viet, oi viet
lang van » dang van, tang van, hoang van
cao lang » cao dang, cao tang, cao bang
cam tay » cam bay, cam day, canh tay
cong so » cong san, cong hoa
so viet » hoc viet
nam tay » nam tai, nom tay, nam tan
ca tay » ha tay, ca tai, co tay
lan va » luan va, lanh va, lan van
ca cay » cua cay, cac cay, ca cac
o doi » bo doi, co doi, ho doi
va ca » va cac, va cao, va cai

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 lang van ((ca tay) or (((cam tay) or (nam tay)))) o doi viet nam ) or ( chuong ((trinh cau) or (trinh chat)) lan va ca cay cong so viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cao lang van ((ca tay) OR (((cam tay) OR (nam tay)))) o doi viet nam ) OR ( chuong ((trinh cau) OR (trinh chat)) lan va ca cay cong so viet nam )).
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cao lang van ((ca tay) or (((cam tay) or (nam tay)))) o doi viet nam ) or ( chuong ((trinh cau) or (trinh chat)) lan va ca cay cong so viet nam ))*.