Perhaps you should try some spelling variations:
luc luan » ly luan, tu luan
cac thuc » cach thuc, cac thu, cay thuc
can thuc » dan thuc, van thuc, cay thuc
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
di cua » dai cua, doi cua, de cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((nuoc luan) OR (luc luan)) ky nang xa hoi. hieu ve ((cac thuc) or (can thuc)) va hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nuoc luan) OR (luc luan)) ky nang xa hoi. hieu ve ((cac thuc) OR (can thuc)) va hanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nuoc luan) OR (luc luan)) ky nang xa hoi. hieu ve ((cac thuc) or (can thuc)) va hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: ((nuoc luan) OR (luc luan)) ky nang xa hoi. hieu ve ((cac thuc) or (can thuc)) va hanh di cua te*.