Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cua triet » cua viet, su triet, va triet
nham thu » nham thuc, nam thu, nhan thuc
pham thu » pham thuc, pham thi, pham tu
thanh vi » hanh vi, thanh va, thanh ve
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky lang xa hoi. hieu ve ((nham thu) OR (pham thu)) van thanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang xa hoi. hieu ve ((nham thu) OR (pham thu)) van thanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang xa hoi. hieu ve ((nham thu) OR (pham thu)) van thanh vi cua triet*.