Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, thong thong, phong chong
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
tong cong » trong cong, cong cong, dung cong
doanh cao » doanh co, doanh bao, doanh cho
doan cap » dan ca, toan cao, doan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - hanh trinh cua ((thong cong) OR (tong cong)) tap ((doan cap) or (doanh cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh cua ((thong cong) OR (tong cong)) tap ((doan cap) OR (doanh cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh cua ((thong cong) OR (tong cong)) tap ((doan cap) or (doanh cao))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh cua ((thong cong) OR (tong cong)) tap ((doan cap) or (doanh cao))*.