Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam
va dan » ca dan, va dao, va dau
de cua » le cua, te cua, dieu cua
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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: tu sach ky nang x hoi. hieu ve cam xuc ((ban thanh) OR (va dan)) de cua tu~.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu ve cam xuc ((ban thanh) or (va dan)) de cua tu*.