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
sach ty » sach y, sach tu, sach thu
so sach » so sanh, bo sach, co sach
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va
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 ty ((nang xa) OR (nang x)) hoi. ((hieu va) 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 ty ((nang xa) OR (nang x)) hoi. ((hieu va) 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 ty ((nang xa) OR (nang x)) hoi. ((hieu va) or (hieu qua)) cam luc van hanh vi cua triet*".