Perhaps you should try some spelling variations:
doanh ban » doanh bat, doanh van, doanh nhan
thu sach » tu sach, thuat sach, thuoc sach
ban muon » ban huong, ban tuong, ban quan
muon tre » muong tren, tuoi tre, muong te
phu san » phi san, thuy san
hieu va » lieu va, hieu qua
lao va » tao va, bao va, dao va
cao va » cao van, tao va, co va
x hoi » xa hoi, o hoi, x ho

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 (phu san)) ky nang x hoi. hieu va cac ((lao va) OR (cao va)) doanh ban muon tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (phu san)) ky nang x hoi. hieu va cac ((lao va) OR (cao va)) doanh ban muon tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (phu san)) ky nang x hoi. hieu va cac ((lao va) OR (cao va)) doanh ban muon tre".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (phu san)) ky nang x hoi. hieu va cac ((lao va) OR (cao va)) doanh ban muon tre*.