Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
so sach » so sanh, bo sach, co sach
ty hang » ly hang, ty xang, thi hang
hieu ve » hieu va, hieu van
ve chao » ve chat, ve cham, ve cho
anh tai » hanh tai, anh thai, vanh tai
tai cua » thai cua, tai cuc, tri cua
hang x » nang x, hoang xa, chang xu

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) or (so sach)) ty hang x ho. hieu ve chao ((tu van) OR (tu va)) anh tai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (so sach)) ty hang x ho. hieu ve chao ((tu van) OR (tu va)) anh tai cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (so sach)) ty hang x ho. hieu ve chao ((tu van) OR (tu va)) anh tai cua vat".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (so sach)) ty hang x ho. hieu ve chao ((tu van) OR (tu va)) anh tai cua vat*.