Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vat cua » mat cua, bat cua, dat cua
van vat » van chat, nhan vat
cac dac » cac dan, cac dai, cac bac
cac tac » cac toc, cac bac, cac tai
te sach » toc sach
kv nang » ky nang, ki nang, ke nang
hieu va » lieu va, hieu qua
v nang » va nang, vu nang, van 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: te sach ((v nang) or (kv nang)) x hoi. hieu va ((cac tac) or (cac dac)) va van vat cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((v nang) OR (kv nang)) x hoi. hieu va ((cac tac) OR (cac dac)) va van vat cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (kv nang)) x hoi. hieu va ((cac tac) or (cac dac)) va van vat cua triet*.