Perhaps you should try some spelling variations:
chat soc » cham soc, chat hoc, chat doc
lang van » dang van, tang van, hoang van
ban hang » ngan hang
van hanh » van thanh, van anh, van ban
te sach » toc sach
sach ky » sac ky, sach y, sach ty
va chat » van chat, va phat, cao chat
hieu va » lieu va, hieu qua
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
vi cua » vai cua, di cua
cua te » cua tu

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 lang van hoi. hieu va chat soc ((van hanh) OR (((ban hanh) OR (ban hang)))) vi cua te~.
• Adding a wildcard symbol may retrieve word variants: te sach ky lang van hoi. hieu va chat soc ((van hanh) or (((ban hanh) or (ban hang)))) vi cua te*.