Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh hai » thanh hai, nhanh hai, hang hai
ban hanh » ban hang
hau treo » cau treo, cau theo, dau tren
ly vang » ly hang, ly van, ly quang
hieu va » hieu qua
duc ban » duc tan, duc van, dua ban
ly nang » ky nang, ly hang, ly quang
hai hau » hai chau, dai hau, hai hai
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: thu sach ((ly nang) OR (ly vang)) x hoi. ((lieu va) or (hieu va)) pham duc ban hanh hai hau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ly nang) OR (ly vang)) x hoi. ((lieu va) OR (hieu va)) pham duc ban hanh hai hau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ly nang) OR (ly vang)) x hoi. ((lieu va) or (hieu va)) pham duc ban hanh hai hau treo".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ly nang) OR (ly vang)) x hoi. ((lieu va) or (hieu va)) pham duc ban hanh hai hau treo*.