Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
sinh thai » dinh thi
thu sach » tu sach, thuoc sach, thu hoach
chat xuc » chat huu, cam xuc, chao xu
thai cua » than cua, tai cuc, tri cua
van sinh » van minh, va sinh, van dinh
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
xuc van » duc van, luc van, vuc van
ty sang » ty xang, ty hang, duy sang
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: ((thu sach) or (thuat sach)) ty sang ((ma hoa) or (xa hoi)). hieu ve chat xuc van sinh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuat sach)) ty sang ((ma hoa) OR (xa hoi)). hieu ve chat xuc van sinh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thuat sach)) ty sang ((ma hoa) or (xa hoi)). hieu ve chat xuc van sinh thai cua tre*.