Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh chao » trinh chat, trinh han, trinh giao
trinh cau » trinh chat, trinh tu, trinh han
van chat » cao chat
chat cay » chat cam, chat cao, chat gay
hoc viet » hoc hien
trinh co » trinh do, trinh cong, trinh hoa
dan tay » ban tay, gian tay, canh tay
dao tay » dao tao
cao tay » cao tai, bao tay, cam tay
lan van » luan van, lang van, tan van
cau lan » cau lanh, cao lan, sau lan
lan va » luan va, lanh va, lang va
cay co » cac co, tay co, cay cong

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 cau lan van chat cay co hoc viet nam ) or ( chuong ((trinh chao) or (trinh co)) lan va ((cao tay) or (((dao tay) OR (dan tay)))) co hoc viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( chuong trinh cau lan van chat cay co hoc viet nam ) OR ( chuong ((trinh chao) OR (trinh co)) lan va ((cao tay) OR (((dao tay) OR (dan tay)))) co hoc viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( chuong trinh cau lan van chat cay co hoc viet nam ) or ( chuong ((trinh chao) or (trinh co)) lan va ((cao tay) or (((dao tay) OR (dan tay)))) co hoc viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (( chuong trinh cau lan van chat cay co hoc viet nam ) or ( chuong ((trinh chao) or (trinh co)) lan va ((cao tay) or (((dao tay) OR (dan tay)))) co hoc viet nam ))*.