Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh tai » thanh tai, hang tai, han tai
ban hanh » ban hang
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cua triet, dua tren
cam cuc » cam xuc, cham cuu, pham cuc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
y nang » ky nang, ly nang, v nang

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

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