Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
thanh va » thanh van, hanh va, thanh ha
su sach » so sach, vu sach
ky dang » ky nang
ky danh » ky anh
nam xuc » cam xuc, nam xua, nam thuc
cua tre » cua te, cuu tre, dua tren
va nam » van nam, ha nam, va nay
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: su sach ((ky dang) OR (ky danh)) xa hoi. lieu va nam xuc va thanh va ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky dang) OR (ky danh)) xa hoi. lieu va nam xuc va thanh va ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky dang) OR (ky danh)) xa hoi. lieu va nam xuc va thanh va ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ((ky dang) OR (ky danh)) xa hoi. lieu va nam xuc va thanh va ((cua tre) or (cua triet))*.