Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
thieu manh » hieu manh, tien manh, trieu minh
hoc thieu » toc thieu, hoc hien
doanh cao » doanh bao, doanh cho, doanh dao
tang cua » mang cua, hang cua, tang luan
manh cua » doanh cua, ban cua
cong tac » cong ty
doanh co » doanh cua, doanh va, anh co

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - hanh ((tang cua) OR (manh cua)) thong cong tac ((doanh cao) OR (doanh co))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - hanh ((tang cua) or (manh cua)) thong cong tac ((doanh cao) or (doanh co))*.