Perhaps you should try some spelling variations:
hoa duoc » hoa hoc
hoc duoc » hoc nuoc, hoc dung
te sach » toc sach
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang

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 xa hoi. hieu ve ((hoc duoc) OR (hoa duoc)) va hanh vi ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. hieu ve ((hoc duoc) OR (hoa duoc)) va hanh vi ((cua tre) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu ve ((hoc duoc) OR (hoa duoc)) va hanh vi ((cua tre) or (cuu tre))*.