Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
thanh ve » hanh ve, thanh va, thanh vien
vu sach » vu bach, su sach, vu khach
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
cua tre » cua te, cuu tre, dua tren
xuc va » duc va, tuc va, luc va

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

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