Perhaps you should try some spelling variations:
xach tay » canh tay
sach thu » sach thue, sach thieu, sach tham
cua viet » ca viet, hoa viet, cua vat
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
ma hoi » mai hoi, ma hoa, me hoi
va dau » va dao
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((xach tay) OR (sach thu)) sang ((ma hoi) OR (xa hoi)). lieu va dau tu va hanh di cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((xach tay) or (sach thu)) sang ((ma hoi) OR (xa hoi)). lieu va dau tu va hanh di cua viet~".
• Adding a wildcard symbol may retrieve word variants: te ((xach tay) or (sach thu)) sang ((ma hoi) OR (xa hoi)). lieu va dau tu va hanh di cua viet*.