Perhaps you should try some spelling variations:
vua triet » cua triet, va triet, va trien
thanh va » thanh van, hanh va, thanh ha
va thanh » gia thanh, ban thanh, va tinh
cho duoc » che duoc, co duoc, cho cuoc
duoc va » nuoc va, duc va, duoc ma
hieu va » lieu va, hieu qua
so sach » bo sach, co sach, hoc sach
te sach » toc sach
so sanh » do sanh
va cho » van cho, va co, va che
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) OR (so sanh))) or (te sach)) ky nang x hoi. hieu va cho duoc va thanh va vua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((so sach) OR (so sanh))) OR (te sach)) ky nang x hoi. hieu va cho duoc va thanh va vua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((so sach) OR (so sanh))) or (te sach)) ky nang x hoi. hieu va cho duoc va thanh va vua triet".
• Adding a wildcard symbol may retrieve word variants: ((((so sach) OR (so sanh))) or (te sach)) ky nang x hoi. hieu va cho duoc va thanh va vua triet*.