Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thu sach » tu sach, thuat sach, thu hoach
cham xuc » cam xuc, chat xuc, cham soc
cac tren » ca tren, cau tren, rac tren
hieu ve » hieu van
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
van anh » van thanh, tuan anh, van minh
anh va » hanh va
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: ((thu sach) OR (thuoc sach)) ky nang x hoi. ((hieu ve) or (hieu va)) cham xuc van anh va cac tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuoc sach)) ky nang x hoi. ((hieu ve) OR (hieu va)) cham xuc van anh va cac tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (thuoc sach)) ky nang x hoi. ((hieu ve) or (hieu va)) cham xuc van anh va cac tren".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (thuoc sach)) ky nang x hoi. ((hieu ve) or (hieu va)) cham xuc van anh va cac tren*.