Perhaps you should try some spelling variations:
vat hanh » vat thanh, van hanh, va hanh
sach tu » sach thu, sach ty, sach uu
cach tu » cach thuc
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh de » hanh ve, hanh kem
cua tu » cua tuc, cua su, cua cu
ve am » va am
thuc » thu

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 tu) OR (cach tu)) nang xa hoi. hieu ve am thuc vat hanh de ((cua te) OR (cua tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach tu) OR (cach tu)) nang xa hoi. hieu ve am thuc vat hanh de ((cua te) or (cua tu))~".
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) OR (cach tu)) nang xa hoi. hieu ve am thuc vat hanh de ((cua te) or (cua tu))*.