Perhaps you should try some spelling variations:
te sach » toc sach
va nang » van nang, da nang, cam nang
hanh de » hanh ve, hanh kem
va hanh » van hanh, va thanh, va danh
ly nang » ky nang, ly hang, ly vang
hieu va » lieu va, hieu qua
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cao
de cua » le cua, te cua, dieu cua
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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 ((va nang) OR (ly nang)) ((x hoi) OR (o hoi)). hieu va cam xuc va hanh de cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((va nang) or (ly nang)) ((x hoi) OR (o hoi)). hieu va cam xuc va hanh de cua vat~".
• Adding a wildcard symbol may retrieve word variants: te sach ((va nang) or (ly nang)) ((x hoi) OR (o hoi)). hieu va cam xuc va hanh de cua vat*.