Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
thanh di » thanh doi, thanh de, thanh dinh
thanh do » thanh de, thanh pho, thanh hoa
thu sac » thu sach, thu san, thu xac
thuc va » thuc vat, thuc dan, thuc day
sac ky » cac ky, sai ky
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: thu sac ky nang x hoi. hieu van nam thuc va ((thanh di) OR (thanh do)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky nang x hoi. hieu van nam thuc va ((thanh di) OR (thanh do)) cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang x hoi. hieu van nam thuc va ((thanh di) OR (thanh do)) cua triet*.