Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
canh chuc » hanh phuc, anh thuc, dinh chuc
cong chuc » cong thuc, cong cu, cong cua
dang xay » dang van, van xay
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
va tinh » may tinh
va cau » van cau, va cac, va dau
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky dang xay hoi. hieu vien ((canh chuc) or (cong chuc)) va tinh ((va cau) or (va che)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang xay hoi. hieu vien ((canh chuc) OR (cong chuc)) va tinh ((va cau) OR (va che)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang xay hoi. hieu vien ((canh chuc) or (cong chuc)) va tinh ((va cau) or (va che)) tre*.