Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hien xanh » hien hanh, hien nhanh, chieu xanh
va phuong » va thuong, cac phuong
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
tranh va » tranh van, trang va, trinh va
toan ban » van ban

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 va phuong cong hach toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh tranh va phuong cong hach toan ban*.