Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang van » dang van, tang van, lang van
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
hanh de » hanh ve, hanh kem
hanh di » hanh vi, hang di, danh di
so sach » so sanh, bo sach, co sach
van hoi » van hoa, van hoc, van hoe
van cam » van nam, van lam, van cau
luc va » duc va, tuc va, loc va
xuc va » duc va, tuc va, xac va

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 van hoi. hieu van cam ((xuc va) OR (luc va)) ((hanh di) or (hanh de)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang van hoi. hieu van cam ((xuc va) OR (luc va)) ((hanh di) OR (hanh de)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang van hoi. hieu van cam ((xuc va) OR (luc va)) ((hanh di) or (hanh de)) cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang van hoi. hieu van cam ((xuc va) OR (luc va)) ((hanh di) or (hanh de)) cua triet*.