Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
chat xuc » chat huu, cam xuc, chao xu
tu sach » su sach, te sach, tu cach
cua tre » cuu tre, cua triet, dua tren
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
tu chat » tu phat, tu cham, du chat
hieu tu » chieu tu, hieu tuc, hien tu
xuc va » duc va, tuc va, luc va
nang o » nang co, nang ho, nang ro
cua te » cua tu
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: ((tu sach) or (thu sach)) ky nang o hoi. hieu tu chat xuc va hanh di ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang o hoi. hieu tu chat xuc va hanh di ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang o hoi. hieu tu chat xuc va hanh di ((cua tre) or (cua te))*.