Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
pham cuc » pham chuc, pham duc, pham cua
hanh tai » thanh tai, hang tai, han tai
ban hanh » ban hang
tai cua » thai cua, tai cuc, tri cua
cam cuc » cam xuc, cham cuu
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
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) OR (pham cuc)) ban hanh tai cua 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) OR (pham cuc)) ban hanh tai cua 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) OR (pham cuc)) ban hanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. ((hieu ve) or (lieu va)) ((cam cuc) OR (pham cuc)) ban hanh tai cua tre*.