Perhaps you should try some spelling variations:
thanh ho » thanh pho, thanh hoa, thanh hoc
va thanh » gia thanh, ban thanh, va tinh
cham xuc » cam xuc, chat xuc, cham soc
vu sach » vu bach, su sach, vu khach
hieu va » hieu qua
cua tre » cua te, cuu tre, cua triet
nang mo » nang meo, nang ma, nang co
te sach » toc sach
mo hoc » mon hoc, co hoc
xuc va » duc va, tuc va, luc va
ho cua » hoc cua, hoi cua, hoa cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) or (te sach)) ky nang mo hoc. ((hieu va) OR (lieu va)) cham xuc va thanh ho cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (te sach)) ky nang mo hoc. ((hieu va) OR (lieu va)) cham xuc va thanh ho cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (te sach)) ky nang mo hoc. ((hieu va) OR (lieu va)) cham xuc va thanh ho cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (te sach)) ky nang mo hoc. ((hieu va) OR (lieu va)) cham xuc va thanh ho cua tre*.