Perhaps you should try some spelling variations:
hieu cao » chieu cao, hieu cac, hieu ca
chat xuc » chat huu, cam xuc, chao xu
ban hanh » ban hang
hanh lam » thanh lap, hanh kem, hanh va
va triet » va trien, ve triet, cua triet
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
xang xa » lang xa, mang xa, ang xa
xuc ban » duc ban, cuc ban, quoc ban
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (so sanh)) ty xang xa hoi. hieu cao chat xuc ban hanh lam ((va triet) OR (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ty xang xa hoi. hieu cao chat xuc ban hanh lam ((va triet) OR (va thiet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (so sanh)) ty xang xa hoi. hieu cao chat xuc ban hanh lam ((va triet) OR (va thiet))".
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (so sanh)) ty xang xa hoi. hieu cao chat xuc ban hanh lam ((va triet) OR (va thiet))*.