Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cau tren » cu tren, dau tren, ca tren
thanh di » thanh doi, thanh de, thanh do
cham xuc » chat xuc, cham soc, pham duc
sach va » sach xa, sach ha, sach dao
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
va nang » van nang, da nang, cam nang
ma hoi » mai hoi, xa hoi, me hoi
di cau » da cau, diem cau

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

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