Perhaps you should try some spelling variations:
tien nguoi » dien nguoi, ten nguoi, tren nguoi
nguoi sinh » nguoi binh, nguoi kinh, nguoi ninh
phau thong » phap thong, khau thong, phan thong
bien thuoc » bien thuc, trien thuoc, kien thuc
thuoc sach » hoc sach, nuoc sach, thuat sach
sach tien » sach tren, sach thieu
sinh khoa » sinh hoc, sinh hoat, anh khoa
khoa phau » hoa phan, khoa kham, khoa than
cach bien » cam bien, mach dien
phu thong » pho thong, phap thong, khau thong
su sach » so sach, vu sach
su cach » tu cach, su cac, cuu cach
nha phu » nha chu, nhanh phu, chau phu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( su sach tien nguoi sinh khoa phau thong ) or ( su cach bien thuoc sach nha phu thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach tien nguoi sinh khoa phau thong ) OR ( su cach bien thuoc sach nha phu thong )).
• Adding a wildcard symbol may retrieve word variants: (( su sach tien nguoi sinh khoa phau thong ) or ( su cach bien thuoc sach nha phu thong ))*.