Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
chat xuc » chat huu, cam xuc, chao xu
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
va danh » va dinh, va dan, va hanh
vai cua » dai cua, hai cua, lai cua
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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 ly nang x hoi. hieu va chat xuc va danh ((di cua) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ly nang x hoi. hieu va chat xuc va danh ((di cua) OR (vai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ly nang x hoi. hieu va chat xuc va danh ((di cua) or (vai cua)) tre*.