Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
thi hong » thi cong, thi phuong, thi hanh
vai cac » va cac, tai cac, voi cac
vai cau » va cau, van cau, lai chau
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ty hang » ly hang, ty xang, thi hang
ve cham » va cham, ve chat, vu cham
xuc va » duc va, tuc va, luc va

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 ((ty hang) or (thi hong)) co hoc. hieu ve cham xuc va hanh ((vai cau) OR (vai cac)) treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty hang) OR (thi hong)) co hoc. hieu ve cham xuc va hanh ((vai cau) OR (vai cac)) treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty hang) or (thi hong)) co hoc. hieu ve cham xuc va hanh ((vai cau) OR (vai cac)) treo".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty hang) or (thi hong)) co hoc. hieu ve cham xuc va hanh ((vai cau) OR (vai cac)) treo*.