Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
van doanh » toan doanh, van dong, van thanh
te sach » toc sach
van cuu » van cau, van chu, van cu
hieu va » lieu va
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
cuu tre » cua tre, cau tren, cau treo
su van » tu van, vu van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ty nang) or (ty hang)) xa hoi. ((hieu va) or (hieu qua)) cao su van doanh van cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty hang)) xa hoi. ((hieu va) OR (hieu qua)) cao su van doanh van cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) or (ty hang)) xa hoi. ((hieu va) or (hieu qua)) cao su van doanh van cuu tre*.