Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh tai » thanh tai, hang tai, hinh tai
cuc ban » cua ban, cac ban, cuu ban
han tai » hang tai, nhan tai, van tai
cam cuc » cam xuc, cham cuu, pham cuc
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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

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