Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
hien xanh » chieu xanh, hien khanh, khien canh
hien hanh » dieu hanh
tong cong » trong cong, cong cong, dung cong
tranh va » tranh van, trang va, trinh va
cong van » cong vang, cong san, song van
van quan » van ban
quan cau » quang cao, toan cau, quan ha
va tong » va thong, va tuong, va trong

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 va tong cong van quan 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 va tong cong van quan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (((hien nhanh) or (hien hanh)))) - canh tranh va tong cong van quan cau*.