Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
hanh tang » anh tang, hanh mang, hanh tung
cua nhung » va nhung
khi xanh » khia canh, thi hanh, thi anh
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cau » 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: doi khi xanh - ((hanh tang) OR (hanh trang)) cua nhung cong van toan cau~.
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - ((hanh tang) or (hanh trang)) cua nhung cong van toan cau*.