Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
sach ky » sac ky, sach y, sach ty
ha thuc » va thuc, ha thuy, ha thu
hanh ca » hanh cac, hanh cat, hanh cua
van ha » van hoa, van chat, van phan
ca cua » co cua

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 ky ((nang x) or (dang xay)) hoi. hieu van ha thuc van hanh ca cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky ((nang x) OR (dang xay)) hoi. hieu van ha thuc van hanh ca cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ky ((nang x) or (dang xay)) hoi. hieu van ha thuc van hanh ca cua triet*.