Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
dang xay » dang van, van xay
sach ky » sac ky, sach y, sach ty
dinh vi » dinh ve, dinh viet, dinh tri
xuc quy » duc quy, xuan quy
te sach » toc sach
hieu ve » hieu van
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
hieu va » lieu va, hieu qua

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 ky dang xay hoi. ((hieu ve) OR (hieu va)) cam xuc quy dinh vi ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang xay hoi. ((hieu ve) OR (hieu va)) cam xuc quy dinh vi ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang xay hoi. ((hieu ve) OR (hieu va)) cam xuc quy dinh vi ((cua triet) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang xay hoi. ((hieu ve) OR (hieu va)) cam xuc quy dinh vi ((cua triet) or (su triet))*.