Perhaps you should try some spelling variations:
hieu viet » sieu viet, hieu viec, lieu viet
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
dat cua » day cua, mat cua, bat cua
dan cua » dan ca, ban cua, day cua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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 y nang ma hoi. hieu viet giao duc va thanh ((((dat cua) OR (dan cua))) OR (dai cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ma hoi. hieu viet giao duc va thanh ((((dat cua) OR (dan cua))) or (dai cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. hieu viet giao duc va thanh ((((dat cua) OR (dan cua))) or (dai cua)) tre*.