Perhaps you should try some spelling variations:
phuong trinh » chuong trinh, cong trinh, huong tran
thuong hieu » thuong viet
trinh quoc » trinh quan, chinh quoc, trinh doc
hieu quoc » bieu quoc, tieu quoc, hieu thuoc
quoc giao » nuoc giao, duoc giao, quach giao
va phuong » cac phuong
thu sach » tu sach, thuat sach, thuoc sach
sach tri » sach tai, sach tren, sach truc
thuc va » thuc vat, thuc dan, thuc day
te sach » toc sach
tue va » thue va, te va, que va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu sach tri thuc va thuong hieu quoc giao ) or ( te sach tri tue va phuong trinh quoc gia ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu sach tri thuc va thuong hieu quoc giao ) OR ( te sach tri tue va phuong trinh quoc gia )).
• Adding a wildcard symbol may retrieve word variants: (( thu sach tri thuc va thuong hieu quoc giao ) or ( te sach tri tue va phuong trinh quoc gia ))*.