Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
lanh hanh » lanh manh, lenh hanh, xanh hanh
chu xanh » chu manh, chieu xanh, chua xang
cong san » cong tac
toan cao » toan ban
toan tap » toan ban
hanh va » hang va, hanh vi
chuc » thuc, chua, phuc

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 xanh) or (chuc nang)) - lanh hanh va nhung cong san ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chuc nang)) - lanh hanh va nhung cong san ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chuc nang)) - lanh hanh va nhung cong san ((toan cao) or (toan tap))*.