Perhaps you should try some spelling variations:
truong phuong » truong chung, truong trung, quang phuong
dung phuong » dung thuong, bang phuong, dung chung
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cac » trinh cac, thanh cac, tranh cai
binh toan » tinh toan, hinh toan, minh toan
toan cau » toan cao, toan ban, toan tap

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 - canh tranh cac ((truong phuong) OR (dung phuong)) binh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - canh tranh cac ((truong phuong) OR (dung phuong)) binh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh tranh cac ((truong phuong) OR (dung phuong)) binh toan cau*.