Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
phuong tinh » phuong trinh, phuong binh, khuong tinh
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
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 tinh 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 tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((hien xanh) or (hien nhanh))) or (hien hanh)) - canh tranh cac dung phuong tinh toan cau*.