Perhaps you should try some spelling variations:
ve triet » va trien, su triet
danh bat » doanh bat, anh bai, dinh ba
danh sai » dung sai, danh dau, hanh san
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cac toc » cac toi, cac nuoc, cac thoi
hieu va » lieu va, hieu qua
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
toc va » hoc va, toc ta, tuc va
cua te » cua tu

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