Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sang tay » sang tao, sang tai, sang tac
tang tai » hang tai, dung tai, sang tao
hieu voi » hieu moi, lieu voi, hieu loi
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach y, sach ty
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.

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky ((sang tay) or (tang tai)) hoi. hieu voi (pham or phan) duc va thanh san cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky ((sang tay) OR (tang tai)) hoi. hieu voi (pham OR phan) duc va thanh san cua te.
• Adding a wildcard symbol may retrieve word variants: toc sach ky ((sang tay) or (tang tai)) hoi. hieu voi (pham or phan) duc va thanh san cua te*.