Perhaps you should try some spelling variations:
giao thanh » gia thanh, gian thanh, giay thanh
chuc giao » chu giao, thuoc giao, hoc giao
cau chuc » cau chu, cau phuc, canh chuc
thanh ha » thanh hoa, thanh hai, nhanh ha
cua tre » cua te, cua triet, dua tren
su sach » so sach, vu sach
cuu tre » cau tren, cau treo
va cau » van cau, va cac, va dau
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((y nang) or (v nang)) xa hoi. lieu va cau chuc giao thanh ha ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (v nang)) xa hoi. lieu va cau chuc giao thanh ha ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) or (v nang)) xa hoi. lieu va cau chuc giao thanh ha ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) or (v nang)) xa hoi. lieu va cau chuc giao thanh ha ((cua tre) OR (cuu tre))*.