Perhaps you should try some spelling variations:
tren nguoi » ten nguoi, truyen nguoi, trien nguon
nguoi sach » nguoi san, nuoc sach
sach khong » sach thuong, sach song, bach khang
phan thong » phan thuong, phan hong, phan tong
toan tren » toan tien, toan tran, tran tren
cach thai » cach thoi, sach tham, lich thai
thai thuc » thai thuy, thai tuc, tham thuc
hanh khoa » hang khoa, anh khoa, hanh hoa
khoa phan » hoa phan, khoa than, khoa phau
khong he » khong khi, hong ha, khong _
tu cach » tu cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thuat toan tren nguoi sach khong he thong ) or ( tu cach thai thuc hanh khoa phan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thuat toan tren nguoi sach khong he thong ) OR ( tu cach thai thuc hanh khoa phan thong )).
• Adding a wildcard symbol may retrieve word variants: (( thuat toan tren nguoi sach khong he thong ) or ( tu cach thai thuc hanh khoa phan thong ))*.