Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
luat thong » luat thuong, suat thong, xuat thong
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
doan » doanh, toan, soan

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))) or (canh tranh)) luat thong cong dan chan doan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((((hanh trinh) OR (hanh chinh))) OR (canh tranh)) luat thong cong dan chan doan.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((((hanh trinh) or (hanh chinh))) or (canh tranh)) luat thong cong dan chan doan*.