Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chat » tinh chat, trinh luat, trinh phan
trinh cao » trinh chao, trinh co, trinh cau
trinh han » trinh quan
cay cong » cac cong, cao cong, cau cong
dai viet » mai viet, dao viet, tai 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
cua cay » cua cac
nam tay » nam tai, nom tay, nam tan
so viet » hoc viet
ca tay » ha tay, ca cay, ca tai
lan va » luan va, lanh va, lan van
va cua » va chua, via cua, ca cua
o dai » co dai, do dai, so dai

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 dai viet nam ) or ( chuong ((trinh han) or (trinh chat)) lan va cua 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 dai viet nam ) OR ( chuong ((trinh han) OR (trinh chat)) lan va cua 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 dai viet nam ) or ( chuong ((trinh han) or (trinh chat)) lan va cua cay cong so viet nam ))*.