Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cham xuc » cam xuc, cham soc, pham duc
thu nang » thi nang, thu hang, thu bang
va doanh » van doanh, vay doanh, va danh
chat xuc » chat huu, cam xuc, chao xu
hieu van » hieu va, thien van, lieu va
sach thu » sach thue, sach thieu, sach tham
van cuu » van cau, van chu, van cu
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
cuu tre » cua tre, cau tren, cau treo

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