Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
nham thu » nham thuc, nam thu, nhan thuc
pham thu » pham thuc, pham thi, pham tu
thanh ve » hanh ve, thanh va, thanh vien
su triet » su viet, su tien, ve triet
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
ve su » va su

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)) ban thanh ve su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky lang xa hoi. hieu ve ((nham thu) OR (pham thu)) ban thanh ve su triet.
• Adding a wildcard symbol may retrieve word variants: te sach ky lang xa hoi. hieu ve ((nham thu) or (pham thu)) ban thanh ve su triet*.