Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
quoc bao » quoc oai, hoc bao, quoc va
xuc ban » duc ban, cuc ban, quoc ban
va tham » van tham, va cham, va thanh
tu sach » thu sach, su sach, te sach
ty nang » ky nang, ty xang, ly nang
ty hang » ly hang, ty xang, thi hang
hieu va » lieu va, hieu qua
banh d » anh d, binh d
x hoi » xa hoi, o hoi, x ho
d cau » da cau, di cau, _ cau

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 ((ty nang) OR (ty hang)) x hoi. hieu va tham ((xuc ban) OR (quoc bao)) banh d cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ty hang)) x hoi. hieu va tham ((xuc ban) or (quoc bao)) banh d cau tren~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) OR (ty hang)) x hoi. hieu va tham ((xuc ban) or (quoc bao)) banh d cau tren*.