Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh, van tuan
may nang » may nong, ky nang, cam nang
thanh le » thinh le, thanh ve, thanh de
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
cac xuc » cam xuc, chat xuc, cac cuoc
v nang » va nang, vu nang, van nang
le cua » ly cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((may nang) OR (v nang)) xa hoi. hieu va ((cac xuc) OR (cac nuoc)) van thanh le cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((may nang) or (v nang)) xa hoi. hieu va ((cac xuc) OR (cac nuoc)) van thanh le cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((may nang) or (v nang)) xa hoi. hieu va ((cac xuc) OR (cac nuoc)) van thanh le cua triet*.