Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hanh vai » hanh vi, hanh va, hanh tai
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
ve cach » ve cac, ve canh
sang ma » tang ma, nang ma, sang tao
va cach » va cac
y sang » _ sang, duy sang
ma hoi » mai hoi, xa hoi, ma hoa

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 y sang ma hoi. hieu ((ve cach) OR (va cach)) tu va hanh vai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y sang ma hoi. hieu ((ve cach) OR (va cach)) tu va hanh vai ((cua triet) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y sang ma hoi. hieu ((ve cach) OR (va cach)) tu va hanh vai ((cua triet) or (su triet))*".