Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cao luoc » cao quoc, cao thuoc, cao luong
luoc gia » quoc gia, luc gia, luong gia
thanh vi » hanh vi, thanh va, thanh ve
su sach » so sach, vu sach
ky dang » ky danh
cua tre » cua te, cuu tre, dua tren
va cao » va cac, va co, va dao

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 nang)) xa hoi. lieu va cao luoc gia thanh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky dang) OR (ky nang)) xa hoi. lieu va cao luoc gia thanh vi ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky dang) OR (ky nang)) xa hoi. lieu va cao luoc gia thanh vi ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ((ky dang) OR (ky nang)) xa hoi. lieu va cao luoc gia thanh vi ((cua tre) or (cua triet))*.