Perhaps you should try some spelling variations:
luat thong » luat thuong, suat thong, xuat thong
luan thong » luan phong, luan tuong, xuan thong
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
hanh dung » thanh dung, anh dung, hanh dong
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan ban » van ban

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) or (hien hanh)) - hanh dung ((luan thong) OR (luat thong)) cong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - hanh dung ((luan thong) OR (luat thong)) cong tap toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien hanh)) - hanh dung ((luan thong) OR (luat thong)) cong tap toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - hanh dung ((luan thong) OR (luat thong)) cong tap toan ban*.