Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hanh lai » hanh lam, hanh tai, thanh lap
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ve cham » va cham, vu cham, ve chim
xang ma » tang ma, nang ma, sang ma
ve chat » va chat, van chat
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: tu sach ty xang ma hoi. hieu ((ve cham) or (ve chat)) duc va hanh lai ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty xang ma hoi. hieu ((ve cham) OR (ve chat)) duc va hanh lai ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty xang ma hoi. hieu ((ve cham) or (ve chat)) duc va hanh lai ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty xang ma hoi. hieu ((ve cham) or (ve chat)) duc va hanh lai ((cua triet) OR (su triet))*.