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

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