Perhaps you should try some spelling variations:
bach duoc » bach tuoc, sach duoc, ban duoc
hanh lai » hanh lam, thanh lap, thanh loi
hanh tai » thanh tai, hang tai, hinh tai
hieu van » hieu va, thien van, lieu va
van bach » van bac, van hach, van sach
han tai » hang tai, nhan tai, van tai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
duoc va » nuoc va, duc va, duoc ma
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 van bach duoc va ((hanh lai) OR (((hanh tai) OR (han tai)))) cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. hieu van bach duoc va ((hanh lai) or (((hanh tai) OR (han tai)))) cua tu~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu van bach duoc va ((hanh lai) or (((hanh tai) OR (han tai)))) cua tu*.