Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh loi » thanh hoa, thanh hai, thanh lap
cau tren » cu tren, dau tren, ca tren
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
so sach » so sanh, bo sach, co sach
cam tuc » cam tu, nam thuc, dam thuc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach thu nang ma hoi. hieu ve ((cam tuc) OR (cam xuc)) ban thanh loi ((cua te) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu nang ma hoi. hieu ve ((cam tuc) OR (cam xuc)) ban thanh loi ((cua te) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach thu nang ma hoi. hieu ve ((cam tuc) OR (cam xuc)) ban thanh loi ((cua te) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: so sach thu nang ma hoi. hieu ve ((cam tuc) OR (cam xuc)) ban thanh loi ((cua te) or (cau tren))*.