Perhaps you should try some spelling variations:
hoc cac » hoc cao
danh du » danh dau, danh tu, dinh du
va danh » va dinh, va dan, va hanh
cau luc » cau truc, cau phuc
cam luc » cam xuc
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
y nang » ly nang, v nang, may nang
du cuu » tu cuu

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: hoc cac ((y nang) OR (ky nang)) xa hoi. hieu va ((cam luc) OR (cau luc)) va danh du cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc cac ((y nang) or (ky nang)) xa hoi. hieu va ((cam luc) OR (cau luc)) va danh du cuu tre~".
• Adding a wildcard symbol may retrieve word variants: hoc cac ((y nang) or (ky nang)) xa hoi. hieu va ((cam luc) OR (cau luc)) va danh du cuu tre*.