Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh tai » thanh hai, thanh toan, doanh tai
van thanh » ban thanh, van tuan
tai cua » thai cua, tai cuc, tri cua
duc van » duc va, duc tan, duc manh
cao duc » dao duc, cao suc, giao duc
su sach » so sach, vu sach
nang xa » lang xa, nang ma, mang xa
sach ty » sach y, sach tu, sach thu

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 ty ((nang xa) or (nang x)) hoi. ((hieu qua) or (lieu va)) cao duc van thanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((nang xa) OR (nang x)) hoi. ((hieu qua) OR (lieu va)) cao duc van thanh tai cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ty ((nang xa) or (nang x)) hoi. ((hieu qua) or (lieu va)) cao duc van thanh tai cua triet*.