Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
van doanh » toan doanh, van dong, van thanh
hieu va » lieu va, hieu qua
van cua » vang cua, ban cua, dan cua
tang ma » mang may, tang van
hieu ve » hieu van
sach ky » sach y, sach ty, sach kem
xuc van » duc van, luc van, xuc ban
cua tu » cua tuc, cua su, cua cu
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) OR (sac ky)) tang ma hoa. ((hieu ve) or (hieu va)) cam xuc van doanh van cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) tang ma hoa. ((hieu ve) OR (hieu va)) cam xuc van doanh van cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) tang ma hoa. ((hieu ve) or (hieu va)) cam xuc van doanh van cua tu".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sac ky)) tang ma hoa. ((hieu ve) or (hieu va)) cam xuc van doanh van cua tu*.