Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hanh tang » hanh trang, anh tang, hanh mang
chu xanh » chu manh, chieu xanh, chua xang
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap
tang va » trang va, tang van, thang va
chuc » thuc, chua, phuc

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: theo ((chu xanh) OR (chuc nang)) - hanh tang va ((nhung cong) OR (thong cong)) san toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chuc nang)) - hanh tang va ((nhung cong) OR (thong cong)) san toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chuc nang)) - hanh tang va ((nhung cong) OR (thong cong)) san toan cau*.