Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
thu sach » tu sach, thuat sach, thuoc sach
thanh di » thanh de, thanh do, thanh dinh
xuc van » duc van, luc van, vuc van
nam xuc » cam xuc, nam xua, nam thuc
thi lan » thi hanh, thi nang, thi lien
thi van » thi hanh, thi nang
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
sach o » sach lo, sac o, sach y
o lang » hoa lang, hoi lang

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 o lang xa hoi. ((thi van) or (thi lan)) nam xuc van ((thanh di) OR (thanh doi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach o lang xa hoi. ((thi van) OR (thi lan)) nam xuc van ((thanh di) OR (thanh doi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach o lang xa hoi. ((thi van) or (thi lan)) nam xuc van ((thanh di) OR (thanh doi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach o lang xa hoi. ((thi van) or (thi lan)) nam xuc van ((thanh di) OR (thanh doi)) cua tre*.