Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
doanh van » doan van, doanh va, doanh ban
thu sach » tu sach, thuat sach, thu hoach
thu bang » thu ban, thu hang, chu bang
cham xuc » cam xuc, chat xuc, cham soc
va doanh » van doanh, vay doanh, va danh
bang xa » lang xa, bang va, mang xa
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
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: ((thu sach) OR (thuoc sach)) thu bang xa hoi. hieu vu cham xuc va doanh van cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (thuoc sach)) thu bang xa hoi. hieu vu cham xuc va doanh van cua tre".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (thuoc sach)) thu bang xa hoi. hieu vu cham xuc va doanh van cua tre*.