Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thien van » thi van
nhanh ha » thanh hoa, thanh hai, khanh hoa
thanh ha » thanh hoa, thanh hai, thanh phan
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
lam luc » lao luc, lam duoc
luc va » duc va, tuc va, loc va
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. ((thien van) or (hieu va)) lam luc va ((thanh ha) OR (nhanh ha)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang x hoi. ((thien van) OR (hieu va)) lam luc va ((thanh ha) OR (nhanh ha)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang x hoi. ((thien van) or (hieu va)) lam luc va ((thanh ha) OR (nhanh ha)) cua triet*".