Perhaps you should try some spelling variations:
luan thong » luan phong, luan tuong, luat thong
thuong van » thong van, thuong va, thuong han
truong van » trong van, truong va, truong dai
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
tang luan » dung luan
anh tang » anh bang, anh dang, anh nang
phan cac » nhan cach, phan dau, phan lap

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)) - anh tang luan thong ((thuong van) OR (truong van)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - anh tang luan thong ((thuong van) OR (truong van)) phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien hanh)) - anh tang luan thong ((thuong van) OR (truong van)) phan cac".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - anh tang luan thong ((thuong van) OR (truong van)) phan cac*.