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 tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
chan nan » chan nhan, chang nang, chan doan

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 tan chan nan~.
• 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 tan chan nan.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((((hanh trinh) or (hanh chinh))) or (canh tranh)) luat thong cong tan chan nan*.