Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
va doanh » vay doanh, va danh, hoa doanh
tham luc » tham nuoc, tham thuc, nhan luc
than luc » nhan luc, than duc, thanh luu
cuu tre » cua tre, cau tren, cau treo
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
tai cuu » tai cuc, tai buu, tai cua
te sai » te tai, te bai, te lai
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky lang xa hoi. hieu va ((tham luc) or (than luc)) ((va doanh) OR (van doanh)) tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky lang xa hoi. hieu va ((tham luc) OR (than luc)) ((va doanh) OR (van doanh)) tai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ky lang xa hoi. hieu va ((tham luc) or (than luc)) ((va doanh) OR (van doanh)) tai cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sai ky lang xa hoi. hieu va ((tham luc) or (than luc)) ((va doanh) OR (van doanh)) tai cuu tre*.