Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hoc sach » hoc sinh, hoc cac, hoc anh
nam thuc » nam thuoc, am thuc, nam thu
ky dang » ky nang
ky danh » ky anh
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
dan tai » van tai, dan thi, han tai
tai cua » thai cua, tai cuc, tri cua
va nam » van nam, ha nam, va nay
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ((ky dang) or (ky danh)) xay hoi. hieu va nam thuc va dan tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ((ky dang) OR (ky danh)) xay hoi. hieu va nam thuc va dan tai cua triet.
• Adding a wildcard symbol may retrieve word variants: hoc sach ((ky dang) or (ky danh)) xay hoi. hieu va nam thuc va dan tai cua triet*.