Perhaps you should try some spelling variations:
trinh thuc » trinh tu, trinh thi
sach trinh » sach tranh, hanh trinh, sach kinh
khau thong » khau thuong, khap thong, khau tong
tri thuat » trien thuat, ki thuat, tri thuc
thuat san » thuat toan, thuat song, thuat lanh
phu thong » pho thong, phap thong, phan thong
thuc hang » thuc hanh, thu hang, phuc hang
hang khoa » dung khoa
khoa khau » khoa kham, khoa phau, khoa chau
sach tri » sach tai, sach tren, sach truc
san khoa » toan khoa, da khoa, von khoa
khoa phu » khoa phau, khoa thu, hoa phu
so sach » so sanh, bo sach, co sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sach tri thuat san khoa phu thong ) or ( so sach trinh thuc hang khoa khau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach tri thuat san khoa phu thong ) OR ( so sach trinh thuc hang khoa khau thong )).
• Adding a wildcard symbol may retrieve word variants: (( so sach tri thuat san khoa phu thong ) or ( so sach trinh thuc hang khoa khau thong ))*.