Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh via » thanh va, thanh vien, thanh vinh
cua triet » cua viet, su triet, va triet
dam thuc » am thuc, dan thuc, dai thuc
nam thuc » nam thuoc, am thuc, nam thu
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
via cua » gia cua, gian cua, giau cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. hieu ve ((dam thuc) or (nam thuc)) ban thanh via cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ve ((dam thuc) OR (nam thuc)) ban thanh via cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ve ((dam thuc) or (nam thuc)) ban thanh via cua triet*.