Perhaps you should try some spelling variations:
sang tao » hang tai
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, sach thu
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duc ban » duc van, dua ban, duc man
san cua » sang cua, ban cua, dan cua
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ky) OR (sach ty)) sang tao hoi. hieu ve pham ((duc ban) OR (duc tan)) thanh san cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach ky) or (sach ty)) sang tao hoi. hieu ve pham ((duc ban) OR (duc tan)) thanh san cua te~".
• Adding a wildcard symbol may retrieve word variants: toc ((sach ky) or (sach ty)) sang tao hoi. hieu ve pham ((duc ban) OR (duc tan)) thanh san cua te*.