Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
van thanh » ban thanh, van tuan
toc sach » hoc sach, doc sach, thuoc sach
cam luc » cam xuc, cau luc
luc van » luoc van, luu van, duc van
hieu va » lieu va, hieu qua
vu nang » vuc nang, va nang, vu dang
cua te » cua tu
va cam » va cham, va cac, va cao
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) OR (toc sach)) vu nang x hoi. hieu va cam luc van thanh lap ((cua te) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) vu nang x hoi. hieu va cam luc van thanh lap ((cua te) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) vu nang x hoi. hieu va cam luc van thanh lap ((cua te) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) vu nang x hoi. hieu va cam luc van thanh lap ((cua te) or (cua triet))*.