Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
tang luan » dung luan
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
ban quan » van quan
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((((ban cua) OR (ban quan))) OR (tang luan)) nhung cong manh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh ((((ban cua) OR (ban quan))) or (tang luan)) nhung cong manh toan cao~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((((ban cua) OR (ban quan))) or (tang luan)) nhung cong manh toan cao*.