Perhaps you should try some spelling variations:
hganh nang » nganh nong, anh nang
nhung cong » dung cong, thong cong, hang cong
ganh nang » anh nang, nganh nong, van nang
cua nhung » va nhung
theo chu » theo chieu, cho chu, chao chu
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (theo tieu)) xanh - ((hganh nang) or (ganh nang)) cua nhung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (theo tieu)) xanh - ((hganh nang) OR (ganh nang)) cua nhung cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (theo tieu)) xanh - ((hganh nang) or (ganh nang)) cua nhung cong san toan cau*.