Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
manh cua » doanh cua, ban cua
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan 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) or (toc thieu)) xanh - canh manh cua nhung cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (toc thieu)) xanh - canh manh cua nhung cong san toan tap.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (toc thieu)) xanh - canh manh cua nhung cong san toan tap*.