Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thien van » thi van
cham xuc » cam xuc, chat xuc, cham soc
hieu van » hieu va, lieu va, hieu ve
van hanh » ban hanh, van anh, van ban
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cuu tre » cua tre, cau tren, cau treo
nang o » nang co, nang ho, nang ro
vi cuu » vi luu, vinh cuu
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 ky nang o hoi. ((hieu van) or (thien van)) cham xuc ((van hanh) or (van thanh)) vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang o hoi. ((hieu van) OR (thien van)) cham xuc ((van hanh) OR (van thanh)) vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang o hoi. ((hieu van) or (thien van)) cham xuc ((van hanh) or (van thanh)) vi cuu tre*.