Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach ky » sac ky, sach y, sach ty
va chat » van chat, va phat, cao chat
doi cua » dai cua, hoi cua
uoc va » nuoc va, duoc va, quoc va
loc va » hoc va, luc va
di cua » dai cua, de cua, do cua
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang x hoi. lieu va chat ((uoc va) or (loc va)) hanh ((di cua) OR (doi cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang x hoi. lieu va chat ((uoc va) OR (loc va)) hanh ((di cua) OR (doi cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang x hoi. lieu va chat ((uoc va) or (loc va)) hanh ((di cua) OR (doi cua)) te*".