Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hien xanh » hien hanh, chieu xanh, hien khanh
va thong » va thuong, va phuong, he thong
cong san » cong tac
san quan » van quan, ban quan, dan quan
quan cau » quang cao, toan cau, quan ha
va tong » va tuong, va trong, va cong

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)) - canh tranh ((va tong) OR (va thong)) cong san quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - canh tranh ((va tong) OR (va thong)) cong san quan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien nhanh)) - canh tranh ((va tong) OR (va thong)) cong san quan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - canh tranh ((va tong) OR (va thong)) cong san quan cau*.