Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
vanh dai » van dai, vanh tai, lanh dao
van vanh » van anh, van hanh, van manh
cham xuc » cam xuc, chat xuc, cham soc
qua cham » qua hai, qua cac, va cham
su sach » so sach, vu sach
xuc van » duc van, luc van, vuc van
lang ha » long ha
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: ((su sach) or (thuat sach)) ty ((nang x) or (lang ha)) hoi. hieu qua cham xuc van vanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thuat sach)) ty ((nang x) OR (lang ha)) hoi. hieu qua cham xuc van vanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thuat sach)) ty ((nang x) or (lang ha)) hoi. hieu qua cham xuc van vanh dai cua tre*.