Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
ban anh » ban hanh, ban banh, ban danh
xuc ban » duc ban, cuc ban, quoc ban
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
ve cua » le cua, te cua, ve cum
de cua » le cua, te cua, dieu 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: ((tu cac) or (toc sach)) ty nang x hoi. hieu ve cham xuc ban anh ((ve cua) OR (de cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (toc sach)) ty nang x hoi. hieu ve cham xuc ban anh ((ve cua) OR (de cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cac) or (toc sach)) ty nang x hoi. hieu ve cham xuc ban anh ((ve cua) OR (de cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (toc sach)) ty nang x hoi. hieu ve cham xuc ban anh ((ve cua) OR (de cua)) tre*.