Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cua triet » cua viet, su triet, va triet
cham xuc » cam xuc, chat xuc, cham soc
thu bang » thu ban, thu hang, thu trang
chu bang » chuc nang, chu quang, chu trang
va doanh » van doanh, vay doanh, va danh
cua tre » cua te, cuu tre, dua tren
tu sach » thu sach, su sach, te sach
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
xuc va » duc va, tuc va, luc va

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 ((thu bang) OR (chu bang)) xa hoi. hieu vu cham xuc va doanh van ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thu bang) OR (chu bang)) xa hoi. hieu vu cham xuc va doanh van ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((thu bang) OR (chu bang)) xa hoi. hieu vu cham xuc va doanh van ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu bang) OR (chu bang)) xa hoi. hieu vu cham xuc va doanh van ((cua tre) or (cua triet))*.