Perhaps you should try some spelling variations:
tay nguoi » toc nguoi, dao nguoi, lam nguoi
thu sach » tu sach, thuat sach, thuoc sach
sach toc » bach tuoc, sach duoc, sach nuoc
sach hoc » cach hoc, sach hoi, mach hoc
ma nguoi » ca nguoi, va nguoi, cua nguoi
toc tay » toc thai
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: (( thu sach toc tay nguoi ) or ( so sach hoc ma nguoi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu sach toc tay nguoi ) OR ( so sach hoc ma nguoi )).
• Adding a wildcard symbol may retrieve word variants: (( thu sach toc tay nguoi ) or ( so sach hoc ma nguoi ))*.