Perhaps you should try some spelling variations:
ve triet » va trien, su triet
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va
cam luc » cam xuc, cau luc
luc van » luoc van, luu van, duc van
van anh » van thanh, tuan anh, van minh
anh vi » hanh vi, anh va, anh ve
vi ve » va ve, gi ve, ve 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 ty nang xa hoi. ((hieu va) or (hieu qua)) cam luc van anh vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang xa hoi. ((hieu va) OR (hieu qua)) cam luc van anh vi ve triet.
• Adding a wildcard symbol may retrieve word variants: so sach ty nang xa hoi. ((hieu va) or (hieu qua)) cam luc van anh vi ve triet*.