Perhaps you should try some spelling variations:
cua viet » ca viet, cua vat, cua dieu
te sach » toc sach
ty hang » ly hang, thi hang, thu hang
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
va cam » va cham, va cac, va cao
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: te sach ((ty hang) OR (ty xang)) xa hoi. hieu va cam xuc va danh vi ((cua viet) or (hoa viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty hang) OR (ty xang)) xa hoi. hieu va cam xuc va danh vi ((cua viet) OR (hoa viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty hang) OR (ty xang)) xa hoi. hieu va cam xuc va danh vi ((cua viet) or (hoa viet))".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty hang) OR (ty xang)) xa hoi. hieu va cam xuc va danh vi ((cua viet) or (hoa viet))*.