Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
trinh vat » trinh van, trinh luat, sinh vat
tap doanh » tap doan, lap doanh, tap danh
doanh cao » doanh co, doanh bao, doanh cho
trinh va » trinh van, trinh ve, trinh vi
cong tap » cuong tap, cong tac, cong tan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh ((trinh va) OR (trinh vat)) thong cong tap doanh cao~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh ((trinh va) OR (trinh vat)) thong cong tap doanh cao*.