Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
cac dinh » cac tinh, cac hinh, cac doanh
sach ty » sach y, sach tu, sach thu
ba dinh » va dinh, nam dinh, gia dinh
lam xuc » cam xuc, lam duoc
van lam » van nam
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
thi du » thi dua, thi dau, thi diu
du tre » duc tre, du tru, dua tren

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 ty lang xa hoi. hieu van lam xuc ((((cac dinh) OR (xac dinh))) or (ba dinh)) thi du tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty lang xa hoi. hieu van lam xuc ((((cac dinh) OR (xac dinh))) OR (ba dinh)) thi du tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty lang xa hoi. hieu van lam xuc ((((cac dinh) OR (xac dinh))) or (ba dinh)) thi du tre*".