Perhaps you should try some spelling variations:
ve triet » va trien, su triet
hanh ve » hanh vi, hanh va, hanh kem
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
hieu ve » hieu va, hieu van
so sach » bo sach, co sach, hoc sach
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
so sanh » do sanh
luc va » duc va, tuc va, loc va
ve ve » de ve, va ve, ke ve

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)) ty nang xa hoi. ((hieu ve) or (hieu qua)) cam luc va hanh ve ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ty nang xa hoi. ((hieu ve) OR (hieu qua)) cam luc va hanh ve ve triet.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (so sanh)) ty nang xa hoi. ((hieu ve) or (hieu qua)) cam luc va hanh ve ve triet*.