Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
ban hanh » ban hang
cham xuc » chat xuc, cham soc, pham duc
van hanh » van thanh, van anh, van ban
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

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