Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
thu nang » thi nang, thu hang, thu bang
hieu van » hieu va, thien van, lieu va
chat xuc » cam xuc, chao xu, chat cua
hanh lam » thanh lap, hanh kem, dinh lam
sach thu » sach thue, sach thieu, sach tham
chat huu » pham huu
hanh va » hang va, hanh vi
so sach » so sanh, bo sach, co sach
x hoi » xa hoi, o hoi, x ho

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 thu nang x hoi. hieu van ((chat xuc) or (chat huu)) ban ((hanh lam) OR (hanh va)) va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu nang x hoi. hieu van ((chat xuc) OR (chat huu)) ban ((hanh lam) OR (hanh va)) va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach thu nang x hoi. hieu van ((chat xuc) or (chat huu)) ban ((hanh lam) OR (hanh va)) va triet".
• Adding a wildcard symbol may retrieve word variants: so sach thu nang x hoi. hieu van ((chat xuc) or (chat huu)) ban ((hanh lam) OR (hanh va)) va triet*.