Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, dua tren
cac xuc » cam xuc, cac nuoc, chat xuc
te sach » toc sach
hieu ve » hieu va, hieu van
ky danh » ky anh, ky dang
xuc va » duc va, tuc va, luc va
ma hoi » mai hoi, ma hoa, me hoi
ve cac » va cac, vien cac

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

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