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
hanh di » hanh de, hang di, danh di
va cam » va cham, va cao, va cai

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) OR (hanh vi)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat toan ky lang xa hoi. hieu ((va cam) OR (va cac)) truc va ((hanh di) OR (hanh vi)) 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) OR (hanh vi)) 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) OR (hanh vi)) cua viet*.