Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua khong, cua tong
doanh cao » doanh co, doanh bao, doanh cho
cong tap » cuong tap, cong tac, cong tan
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) OR (hanh chinh)) cua thong 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) OR (hanh chinh)) cua thong 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) OR (hanh chinh)) cua thong cong tap ((doan cap) or (doanh cao))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trinh) OR (hanh chinh)) cua thong cong tap ((doan cap) or (doanh cao))*.