Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thien van » thi van
hac nuoc » hoc nuoc, cac nuoc, phap nuoc
nang tri » nang tai, lang tri, nang thi
sang tai » hang tai, sang tao, tang tai
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
van hac » van hoc, van ha, van hai
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ty nang xa hoi. thien van hac nuoc va ((nang tri) or (sang tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ty nang xa hoi. thien van hac nuoc va ((nang tri) OR (sang tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ty nang xa hoi. thien van hac nuoc va ((nang tri) or (sang tai)) cua tre*.