Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
nang tay » nang tai, nang tao, bang tay
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
tay hoi » tay ho, tao hoi, tay thai
hieu ve » hieu va
xuc may » xuc hay, truc may, phuc may
ve cua » le cua, de cua, ve cum
te cua » tue cua, le cua, de cua

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 nang tay hoi. ((hieu ve) OR (hieu van)) cam xuc may tinh ((ve cua) or (te cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang tay hoi. ((hieu ve) OR (hieu van)) cam xuc may tinh ((ve cua) OR (te cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang tay hoi. ((hieu ve) OR (hieu van)) cam xuc may tinh ((ve cua) or (te cua)) triet".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang tay hoi. ((hieu ve) OR (hieu van)) cam xuc may tinh ((ve cua) or (te cua)) triet*.