Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sang tao » hang tai
phan duc » pham duc, phan tu, phan dau
va thanh » gia thanh, ban thanh, le thanh
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
hieu ve » hieu va, hieu van
ve phan » va phan, ke phan, ve phat
va tinh » may tinh
lam cua » nam cua, lam chat
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 tao boi. hieu ve phan duc ((va thanh) or (va tinh)) lam cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky sang tao boi. hieu ve phan duc ((va thanh) OR (va tinh)) lam cua te.
• Adding a wildcard symbol may retrieve word variants: toc sach ky sang tao boi. hieu ve phan duc ((va thanh) or (va tinh)) lam cua te*.