Perhaps you should try some spelling variations:
thanh de » hanh de, thanh ve, thanh do
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va

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 xa hoi. lieu va cam xuc va ((thanh de) or (thanh pho)) ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. lieu va cam xuc va ((thanh de) OR (thanh pho)) ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. lieu va cam xuc va ((thanh de) or (thanh pho)) ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. lieu va cam xuc va ((thanh de) or (thanh pho)) ((cua tre) OR (cuu tre))*.