Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
thanh do » thanh de, thanh pho, thanh hoa
te sach » toc sach
hieu va » lieu va, hieu qua
cam luc » cau luc
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v 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 y nang x hoi. hieu va ((cam luc) or (cam xuc)) va thanh do ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x hoi. hieu va ((cam luc) OR (cam xuc)) va thanh do ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang x hoi. hieu va ((cam luc) or (cam xuc)) va thanh do ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu va ((cam luc) or (cam xuc)) va thanh do ((cua tre) OR (cua triet))*.