Perhaps you should try some spelling variations:
toc sach » hoc sach, thuoc sach, nuoc sach
doc sach » hoc sach, nuoc sach, dac sac
sang tay » sang tao, sang tai, sang tac
hanh lam » thanh lap, hanh kem, hanh va
ky sang » ky nang, ky dang, ky tang
ve pham » v pham, ve phan, ve phat
va hanh » van hanh, va thanh, va danh
lam cua » nam cua, lam chat
tay ho » tay co, tay o, tay khao
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) or (doc sach)) ky sang tay ho. hieu ((ve pham) or (vi pham)) duc va hanh lam cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (doc sach)) ky sang tay ho. hieu ((ve pham) OR (vi pham)) duc va hanh lam cua te.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (doc sach)) ky sang tay ho. hieu ((ve pham) or (vi pham)) duc va hanh lam cua te*.