Perhaps you should try some spelling variations:
truong chung » truong trung
anh truong » manh truong, anh thuong, anh trong
chung dang » phung dang, chuong dong, nhung lang
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
dang cong » dung cong
cong dung » cuong dung, cong dong, cong luong
thanh tap » thanh lap, thanh tay, thanh tam
thanh tai » thanh hai, thanh toan, doanh tai

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