Perhaps you should try some spelling variations:
luat thong » luat thuong, suat thong, xuat thong
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
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 hien xanh - ((((hanh trinh) or (hanh chinh))) or (canh tranh)) luat thong cong dan chan nan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((((hanh trinh) OR (hanh chinh))) OR (canh tranh)) luat thong cong dan chan nan.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((((hanh trinh) or (hanh chinh))) or (canh tranh)) luat thong cong dan chan nan*.