Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
lky nang » ly nang, ki nang, ke nang
dinh dai » dinh dat, sinh dai, dinh dao
va cham » va chat, va tham
truc va » thuc vat, trung va
thuc va » thuc vat, thuc dan, thuc day

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ((ky nang) or (lky nang)) xa hoi. lieu va cham ((truc va) OR (thuc va)) dinh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((ky nang) OR (lky nang)) xa hoi. lieu va cham ((truc va) OR (thuc va)) dinh dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((ky nang) or (lky nang)) xa hoi. lieu va cham ((truc va) OR (thuc va)) dinh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: toc sach ((ky nang) or (lky nang)) xa hoi. lieu va cham ((truc va) OR (thuc va)) dinh dai cua triet*.