Perhaps you should try some spelling variations:
sach tham » sach nha
ban thanh » ban hanh, ban hang
thanh dat » thanh san, thanh hai, thanh van
va triet » va thiet, va trien, ve triet
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duc ban » duc tan, duc van, dua ban

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) OR (sach y))) or (sach tham)) nang xa hoi. hieu ve pham duc ban thanh dat va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((((sach ty) OR (sach y))) OR (sach tham)) nang xa hoi. hieu ve pham duc ban thanh dat va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((((sach ty) OR (sach y))) or (sach tham)) nang xa hoi. hieu ve pham duc ban thanh dat va triet".
• Adding a wildcard symbol may retrieve word variants: tu ((((sach ty) OR (sach y))) or (sach tham)) nang xa hoi. hieu ve pham duc ban thanh dat va triet*.