Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
sach thi » sach thu, sach tai, sach thieu
thi hanh » thi thanh
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, te sach
hanh xa » hanh ma, hanh xu, canh xa
hieu ve » hieu van
hieu va » hieu qua
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach thi hanh xa hoi. ((hieu ve) or (((hieu va) OR (lieu va)))) am thuc va hanh va cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thi hanh xa hoi. ((hieu ve) OR (((hieu va) OR (lieu va)))) am thuc va hanh va cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thi hanh xa hoi. ((hieu ve) or (((hieu va) OR (lieu va)))) am thuc va hanh va cua viet*".