Perhaps you should try some spelling variations:
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
trang cua » tranh cua, trung cua, thang cua
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
tang cua » mang cua, hang cua, tang luan
ban cong » bang cong, van cong, phan cong
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) or (hien hanh)) - hanh ((trang cua) OR (tang cua)) ban cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - hanh ((trang cua) OR (tang cua)) ban cong manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien hanh)) - hanh ((trang cua) OR (tang cua)) ban cong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - hanh ((trang cua) OR (tang cua)) ban cong manh toan ban*.