Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cua triet » cua viet, su triet, va triet
va doanh » van doanh, vay doanh, va danh
ky tang » ky nang, kho tang, ky trong
cua tre » cua te, cuu tre, dua tren
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
te sac » te sach, te cac, te san
tuc va » thuc va, truc va, tuc xa
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ((ky tang) or (ky dang)) ma hoa. hieu ve cac tuc va doanh van ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ((ky tang) OR (ky dang)) ma hoa. hieu ve cac tuc va doanh van ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ((ky tang) or (ky dang)) ma hoa. hieu ve cac tuc va doanh van ((cua tre) OR (cua triet))*".