Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hang loi » thang loi, hang doi, tang loi
hang lai » hang tai, hang hai, hang la
lua ban » luat ban, luan ban, cua ban
cay lua » vay luan
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va cay » va cac, va cao, va cai
ma hoi » mai hoi, xa hoi, me hoi

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 ((ma hoi) or (ma hoa)). lieu va cay lua ban ((hang lai) OR (hang loi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang ((ma hoi) OR (ma hoa)). lieu va cay lua ban ((hang lai) OR (hang loi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang ((ma hoi) or (ma hoa)). lieu va cay lua ban ((hang lai) OR (hang loi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang ((ma hoi) or (ma hoa)). lieu va cay lua ban ((hang lai) OR (hang loi)) cua tre*.