Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
nang mai » nang ma, nang tai, lang mai
doanh va » doan va, doanh tai, doanh cua
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
mai hoi » mai khoi, dai hoi, lai hoi
van cam » van nam, van lam, van dam
van cau » van dau, van hau, van chat
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca cua

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 mai hoi. hieu ((van cam) or (van cau)) le van doanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang mai hoi. hieu ((van cam) OR (van cau)) le van doanh va cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty nang mai hoi. hieu ((van cam) or (van cau)) le van doanh va cua tre*.