Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
luyen tre » luyen tri, huyen tren, tuyen tren
sach ly » sach y, sach lo, sach ty
lua tre » cua tre, luy tre, dua tren
te sach » toc sach
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
va doan » va doanh, van doan, va dan
ve cac » va cac, vien cac
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: te sach ly nang x hoi. hieu ve cac luc ((va doan) or (van doanh)) vi ((lua tre) or (luyen tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly nang x hoi. hieu ve cac luc ((va doan) OR (van doanh)) vi ((lua tre) OR (luyen tre)).
• Adding a wildcard symbol may retrieve word variants: te sach ly nang x hoi. hieu ve cac luc ((va doan) or (van doanh)) vi ((lua tre) or (luyen tre))*.