Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
danh vai » danh sai, danh va, dang van
sach tu » sach thu, cach tu, sach ty
tu nong » tu dong, tu cong, tu tong
cau tuc » cau truc, cau tu, cau luc
nong o » nong do, nong co, dong o
va cau » van cau, va cac, va dau
tuc va » thuc va, truc va, tuc xa
o hoi » co hoi, o hoc, o hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach tu nong o hoi. lieu va cau tuc va ((danh vai) or (doanh van)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tu nong o hoi. lieu va cau tuc va ((danh vai) OR (doanh van)) cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sach tu nong o hoi. lieu va cau tuc va ((danh vai) or (doanh van)) cua triet*.