Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh day » tinh da, tinh dau, tinh dak
cac dac » cac dan, cac dai, cac bac
cua tre » cua te, cuu tre, dua tren
va tinh » may tinh
te sach » toc sach
cac duc » cac du, cao duc, cac nuoc
hieu ve » hieu va, hieu van
sang xa » song xa, lang xa, sang ma
y sang » _ sang, duy sang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y sang xa hoi. hieu ve ((cac duc) OR (cac dac)) va tinh day ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y sang xa hoi. hieu ve ((cac duc) OR (cac dac)) va tinh day ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: te sach y sang xa hoi. hieu ve ((cac duc) OR (cac dac)) va tinh day ((cua tre) or (cua triet))*.