Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
thi hang » thi nang, thi hong, thi thanh
thi hanh » thi thanh
cham xuc » cam xuc, chat xuc, cham soc
cua tre » cuu tre, cua triet, dua tren
van anh » van thanh, tuan anh, van minh
xuc van » duc van, luc van, vuc van
va cham » va chat, va tham
hieu va » lieu va, hieu qua
anh vi » hanh vi, anh va, anh ve
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach ((thi hang) OR (thi hanh)) xa hoi. hieu va cham xuc van anh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach ((thi hang) OR (thi hanh)) xa hoi. hieu va cham xuc van anh vi ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach ((thi hang) OR (thi hanh)) xa hoi. hieu va cham xuc van anh vi ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: doc sach ((thi hang) OR (thi hanh)) xa hoi. hieu va cham xuc van anh vi ((cua tre) or (cua te))*.