Perhaps you should try some spelling variations:
tinh voi » trinh voi, tinh doi, minh voi
binh voi » binh hoi, minh voi, trinh voi
cau treo » cau theo, cau triet, cau trieu
cau tren » cu tren, dau tren, ca tren
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
cao duc » dao duc, cao suc, giao duc
duc may » duc mau, duc man, duc manh
va cao » va cac, va co, va dao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x ho. hieu va cao duc may ((tinh voi) OR (binh voi)) ((cau treo) OR (cau tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x ho. hieu va cao duc may ((tinh voi) OR (binh voi)) ((cau treo) or (cau tren))~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x ho. hieu va cao duc may ((tinh voi) OR (binh voi)) ((cau treo) or (cau tren))*.