Perhaps you should try some spelling variations:
doanh thai » doanh tai, doanh thanh, doanh nhan
thai cuu » thai cua, tai cuc, thi cuc
thu sai » thu hai, thu tai, thu san
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
dieu vu » dien vu, dieu va, dieu cua
sai ky » sac ky
cuu te » cuu de, cua te, cuu tu
cuu ve » cuu va
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: thu sai ky nang x hoi. ((dieu vu) or (hieu va)) cap ((cuu te) OR (cuu ve)) doanh thai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sai ky nang x hoi. ((dieu vu) OR (hieu va)) cap ((cuu te) OR (cuu ve)) doanh thai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sai ky nang x hoi. ((dieu vu) or (hieu va)) cap ((cuu te) OR (cuu ve)) doanh thai cuu tre*".