Perhaps you should try some spelling variations:
sach tru » sach truc, sach thu, sach tu
tru nang » tra nang, tri nang, truc nano
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh de » hanh ve, hanh kem
cua tu » cua tuc, cua su, cua cu
ve am » va am

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 tru nang xa hoi. hieu ve am thuc va hanh de ((cua te) OR (cua tu))~.
• Adding a wildcard symbol may retrieve word variants: te sach tru nang xa hoi. hieu ve am thuc va hanh de ((cua te) or (cua tu))*.