Perhaps you should try some spelling variations:
doanh luan » doanh nhan
thuat sach » thuat lanh, thuat san
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
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: thuat sach thu nang ma hoi. hieu va cac xuc va ((doanh cua) or (doanh luan)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach thu nang ma hoi. hieu va cac xuc va ((doanh cua) OR (doanh luan)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat sach thu nang ma hoi. hieu va cac xuc va ((doanh cua) or (doanh luan)) cua tre*.