Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh tai » thanh hai, thanh toan, doanh tai
lang van » dang van, tang van, hoang van
tai cua » thai cua, tai cuc, tri cua
cam luc » cau luc
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
dang xa » dang xay, lang xa, dang ha
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: su sach ky ((dang xa) or (lang van)) hoi. hieu va ((cam luc) or (cam xuc)) gia thanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((dang xa) OR (lang van)) hoi. hieu va ((cam luc) OR (cam xuc)) gia thanh tai cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky ((dang xa) or (lang van)) hoi. hieu va ((cam luc) or (cam xuc)) gia thanh tai cua triet*.