Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
tham thuc » nham thuc, pham thuc, tam thuc
thanh vai » thanh hai, thanh van, thanh tai
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
van tham » van tuan, van chat, van tai
thuc van » thuc vat, thuc dan, thuc va
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
ca viet » va viet, co viet, hoa viet

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang ma hoa. hieu van tham thuc van thanh vai ((cua triet) or (ca viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang ma hoa. hieu van tham thuc van thanh vai ((cua triet) OR (ca viet)).
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ma hoa. hieu van tham thuc van thanh vai ((cua triet) or (ca viet))*.