Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
cua triet » cua viet, su triet, va triet
thanh van » thanh san, thanh toan, thanh nhan
thu sach » tu sach, thuat sach, thuoc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
o hoc » co hoc, mo hoc, so hoc
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: thu sach ty nang ((x hoi) or (o hoc)). hieu va cam xuc va ((thanh van) OR (thanh phan)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang ((x hoi) OR (o hoc)). hieu va cam xuc va ((thanh van) OR (thanh phan)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang ((x hoi) or (o hoc)). hieu va cam xuc va ((thanh van) OR (thanh phan)) cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang ((x hoi) or (o hoc)). hieu va cam xuc va ((thanh van) OR (thanh phan)) cua triet*.