Perhaps you should try some spelling variations:
cham xuc » chat xuc, cham soc, pham duc
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hanh » va thanh, va danh, ban hanh
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
di cuu » di cau, di cua, dinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. hieu ve ((cham xuc) or (cam xuc)) ((va hanh) OR (van hanh)) di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ve ((cham xuc) OR (cam xuc)) ((va hanh) OR (van hanh)) di cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu ve ((cham xuc) or (cam xuc)) ((va hanh) OR (van hanh)) di cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ve ((cham xuc) or (cam xuc)) ((va hanh) OR (van hanh)) di cuu tre*.