Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
doanh van » doan van, doanh va, doanh ban
thu sach » tu sach, thuat sach, thuoc sach
thu san » thuy san, thu ban, phu san
hieu va » lieu va, hieu qua
cac lao » ca lao, cac loai, cac giao
lao vay » lao va
van cuu » van cau, van chu, van cu
cuu tre » cua tre, cau tren, cau treo
x hoi » o hoi, x ho, 5 hoi

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 (thu san)) ky nang ((x hoi) or (xa hoi)). hieu va cac lao vay doanh van cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thu san)) ky nang ((x hoi) OR (xa hoi)). hieu va cac lao vay doanh van cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thu san)) ky nang ((x hoi) or (xa hoi)). hieu va cac lao vay doanh van cuu tre*.