Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
phuong linh » phuong binh, phuong trinh, cuong linh
hien nhanh » thien thanh, tien thanh, dien thanh
hien xanh » chieu xanh, hien khanh, khien canh
hien hanh » dieu hanh
tranh cac » trinh cac, thanh cac, tranh cai
linh toan » tinh toan, hinh toan, minh toan
cac dung » cach dung, cac duong, tac dung
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) OR (hien nhanh))) or (hien hanh)) - canh tranh cac dung phuong linh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hien xanh) OR (hien nhanh))) OR (hien hanh)) - canh tranh cac dung phuong linh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hien xanh) OR (hien nhanh))) or (hien hanh)) - canh tranh cac dung phuong linh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((((hien xanh) OR (hien nhanh))) or (hien hanh)) - canh tranh cac dung phuong linh toan cau*.