Perhaps you should try some spelling variations:
chuong trinh » cong trinh
trinh cao » trinh chao, trinh co, trinh cau
thai viet » thi viet, tai viet, mai viet
trinh han » trinh quan
hai viet » mai viet, tai viet, dai viet
cua cay » cua cac
luan va » luan van, luat va
han van » phan van, nhan van, hanh van
van via » van va, van gia, van vi
via cua » gia cua, gian cua, giau cua
co thai » do thai, ca thai, co thi
cao lan » cao van, cao dang, cao tang
lan cho » san cho, van cho, han cho
cho cua » co cua, chi cua, cho ca
cay co » cac co, tay co, cay cong
co hai » co dai, co hoi, o hai
lan va » lanh va, lan van, lang va

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 ((lan va) OR (luan va)) cua cay co hai viet nam ) or ( chuong trinh han van via cua cay co thai viet nam ))) or ( chuong trinh cao lan cho cua cay co hai viet nam ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( chuong trinh cao ((lan va) OR (luan va)) cua cay co hai viet nam ) OR ( chuong trinh han van via cua cay co thai viet nam ))) OR ( chuong trinh cao lan cho cua cay co hai viet nam )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( chuong trinh cao ((lan va) OR (luan va)) cua cay co hai viet nam ) or ( chuong trinh han van via cua cay co thai viet nam ))) or ( chuong trinh cao lan cho cua cay co hai viet nam ))".
• Adding a wildcard symbol may retrieve word variants: (((( chuong trinh cao ((lan va) OR (luan va)) cua cay co hai viet nam ) or ( chuong trinh han van via cua cay co thai viet nam ))) or ( chuong trinh cao lan cho cua cay co hai viet nam ))*.