Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh hang » thanh hang, hang hang, hanh han
tong cong » trong cong, cong cong, dung cong
danh toan » manh toan, anh toan, dan toan
khi xanh » khia canh, thi hanh, thi anh
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: doi khi xanh - hanh hang va ((nhung cong) or (tong cong)) danh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi xanh - hanh hang va ((nhung cong) OR (tong cong)) danh toan cau.
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - hanh hang va ((nhung cong) or (tong cong)) danh toan cau*.