Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cua viet » ca viet, hoa viet, cua vat
va doanh » van doanh, vay doanh, va danh
cham duc » pham duc, cham soc, pham duy
van cua » vang cua, ban cua, dan cua
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
tu sach » thu sach, su sach, vu sach
ky dang » ky nang, ky danh
te sach » toc sach
tu cach » tu cac
dang xa » dang xay, lang xa, dang ha

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) OR (tu cach))) or (te sach)) ky dang xa hoi. hieu vu cham duc va doanh van cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (tu cach))) OR (te sach)) ky dang xa hoi. hieu vu cham duc va doanh van cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu sach) OR (tu cach))) or (te sach)) ky dang xa hoi. hieu vu cham duc va doanh van cua viet*".