Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thu sach » tu sach, thuat sach, thu hoach
cau tren » cu tren, dau tren, ca tren
ly hang » ly quang
cac xuc » cam xuc, cac nuoc, chat xuc
dao thi » do thi, dan thi, dang thi
thi cau » thi chau, thi cu, thi cam
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
va dao » ca dao

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: ((thu sach) OR (thuoc sach)) ((y nang) OR (ly hang)) xa hoi. lieu va cac xuc va dao thi cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (thuoc sach)) ((y nang) or (ly hang)) xa hoi. lieu va cac xuc va dao thi cau tren~".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (thuoc sach)) ((y nang) or (ly hang)) xa hoi. lieu va cac xuc va dao thi cau tren*.