Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh ve » thanh va, thanh vien, thanh van
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
hanh ve » hanh vi, hanh va, hanh kem
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang x ho. hieu va cac ((xuc va) or (luc va)) ((thanh ve) OR (hanh ve)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x ho. hieu va cac ((xuc va) OR (luc va)) ((thanh ve) OR (hanh ve)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x ho. hieu va cac ((xuc va) or (luc va)) ((thanh ve) OR (hanh ve)) cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x ho. hieu va cac ((xuc va) or (luc va)) ((thanh ve) OR (hanh ve)) cua triet*.