Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh lai » danh sai, gianh lai, dinh lam
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
cac xuc » cam xuc, cac nuoc, chat xuc
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, dua tren
hieu va » lieu va, hieu qua
nang o » nang co, nang ho, nang ro
xuc va » duc va, tuc va, luc va
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (hoc sach)) ky nang o hoi. hieu va cac xuc va danh lai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) ky nang o hoi. hieu va cac xuc va danh lai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (hoc sach)) ky nang o hoi. hieu va cac xuc va danh lai ((cua tre) or (cua triet))*.