Perhaps you should try some spelling variations:
thien van » thi van
ban thanh » ban hanh, ban hang
cau tren » cu tren, dau tren, cau treo
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
xuc ban » duc ban, cuc ban, quoc ban
nam xuc » cam xuc, nam xua, nam thuc
sach ky » sac ky, sach y, sach ty
ca tren » cu tren, la tren, co tren

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((mang may) or (nang cao)) hoi. thien van nam xuc ban thanh vi ((cau tren) OR (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((mang may) OR (nang cao)) hoi. thien van nam xuc ban thanh vi ((cau tren) OR (ca tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((mang may) or (nang cao)) hoi. thien van nam xuc ban thanh vi ((cau tren) OR (ca tren))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((mang may) or (nang cao)) hoi. thien van nam xuc ban thanh vi ((cau tren) OR (ca tren))*.