Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doanh van » doan van, doanh va, doanh ban
vay doanh » van doanh, ly doanh, voi doanh
sach ky » sac ky, sach y, sach kem
van cua » vang cua, ban cua, dan cua
cac tac » cac toc, cac bac, cac dac
cac tuc » cac toc, cac tu, cac nuoc
hieu ve » hieu va, hieu van
nang ha » nang hai, nang han, nang hoa
sach ty » sach y, sach tu, sach thu
ha hoi » hoa hoi, ha noi, xa hoi

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) OR (sach ty)) nang ha hoi. hieu ve ((cac tuc) or (cac tac)) vay doanh van cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach ty)) nang ha hoi. hieu ve ((cac tuc) OR (cac tac)) vay doanh van cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sach ty)) nang ha hoi. hieu ve ((cac tuc) or (cac tac)) vay doanh van cua triet*".