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