Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
nang tay » nang tai, nang tao, bang tay
su triet » su viet, su tien, ve triet
tay hoi » tay ho, tao hoi, tay thai
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc may » xuc hay, truc may, phuc may
tinh ve » trinh ve, tinh ven, dinh ve
ve cac » va cac, vien cac
ve su » va su

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 (hoc sach)) ky nang tay hoi. hieu ve cac xuc may tinh ve su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) ky nang tay hoi. hieu ve cac xuc may tinh ve su triet.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (hoc sach)) ky nang tay hoi. hieu ve cac xuc may tinh ve su triet*.