Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
toan ky » than ky, toan ly, toan ke
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
va cam » va cham, va cao, va cai
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat toan ky lang xa hoi. hieu ((va cam) OR (va cac)) truc va hanh di cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat toan ky lang xa hoi. hieu ((va cam) OR (va cac)) truc va hanh di cua viet".
• Adding a wildcard symbol may retrieve word variants: thuat toan ky lang xa hoi. hieu ((va cam) OR (va cac)) truc va hanh di cua viet*.