Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
ty chang » ty hang, ty chung, thi chang
luc ban » duc ban, cuc ban, luc bat
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
cam luc » cam xuc, cau luc
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
xu hoi » lu hoi, vu hoi, xu voi
ve cam » ve cham, ve cac, va cam

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 chang ((xu hoi) OR (xa hoi)). hieu ve cam luc ban thanh phan ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty chang ((xu hoi) OR (xa hoi)). hieu ve cam luc ban thanh phan ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty chang ((xu hoi) OR (xa hoi)). hieu ve cam luc ban thanh phan ((cua tre) or (cuu tre))*".