Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
sach ty » sach tu, sach thu, xach tay
hang xa » hoang xa, hang va, hang ca
hieu va » lieu va, hieu qua
va hanh » va thanh, va danh, ban hanh
ca thu » cac thu, cam thu, ca tru
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu
va ca » va cac, va cao, va cai

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: toc ((sach ty) OR (sach y)) hang xa hoi. hieu va ca thu ((va hanh) OR (van hanh)) vi cua tu~.
• Adding a wildcard symbol may retrieve word variants: toc ((sach ty) or (sach y)) hang xa hoi. hieu va ca thu ((va hanh) or (van hanh)) vi cua tu*.