Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
truong va » truong dai, truong cao, truong dao
thuc day » thuc dan, thuc vat
hanh vai » hanh vi, hanh va, hanh tai
van nang » van quang, van ban, van dong
hieu va » lieu va, hieu qua
vai cua » dai cua, hai cua, lai cua
su sach » so sach, vu sach
va cam » va cham, va cac, va cao
v nang » va nang, vu nang, voi nang
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: su sach ((v nang) OR (van nang)) x hoi. hieu va cam ((thuc day) or (truong va)) hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((v nang) OR (van nang)) x hoi. hieu va cam ((thuc day) OR (truong va)) hanh vai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((v nang) OR (van nang)) x hoi. hieu va cam ((thuc day) or (truong va)) hanh vai cua triet*".