Perhaps you should try some spelling variations:
thanh vang » thanh van, thanh hang, thanh hoang
cua triet » cua viet, su triet, va triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
cua tre » cua te, cuu tre, dua tren
va ca » va cac, va cao, va cai

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 ky sang ma hoa. lieu va ca ((cua ban) or (qua quan)) thanh vang ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang ma hoa. lieu va ca ((cua ban) OR (qua quan)) thanh vang ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky sang ma hoa. lieu va ca ((cua ban) or (qua quan)) thanh vang ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang ma hoa. lieu va ca ((cua ban) or (qua quan)) thanh vang ((cua tre) OR (cua triet))*.