Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
dang xay » dang van, van xay
cham tuc » nham thuc, pham thuc, tham thuc
hieu van » thien van, lieu va, hieu ve
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
so sanh » do sanh
hieu va » lieu va, hieu qua
tuc van » thuc van, truc van, tuc va
van anh » van thanh, tuan anh, van minh
so sach » bo sach, co sach, hoc sach
anh vi » hanh vi, anh va, anh ve
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (so sanh)) ky dang xay hoi. ((hieu van) OR (hieu va)) cham tuc van anh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ky dang xay hoi. ((hieu van) OR (hieu va)) cham tuc van anh vi cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (so sanh)) ky dang xay hoi. ((hieu van) OR (hieu va)) cham tuc van anh vi cua viet*".