Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
luc van » luoc van, luu van, duc van
cam luc » cam xuc, cau luc
so sach » so sanh, co sach, hoc sach
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
bo sach » co sach, hoc sach
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua

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 (bo sach)) ty nang xa hoi. ((hieu ve) or (hieu qua)) cam luc van hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) ty nang xa hoi. ((hieu ve) OR (hieu qua)) cam luc van hanh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (bo sach)) ty nang xa hoi. ((hieu ve) or (hieu qua)) cam luc van hanh vi cua triet*".