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