Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
tranh va » tranh van, trang va, trinh va
toan cau » toan tap, toan tai
toan ban » van ban
toan cao » toan tap
khi anh » thi anh, chi anh, khia canh

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 anh - canh tranh va nhung cong thanh ((((toan cau) or (toan ban))) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi anh - canh tranh va nhung cong thanh ((((toan cau) OR (toan ban))) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doi khi anh - canh tranh va nhung cong thanh ((((toan cau) or (toan ban))) or (toan cao))*.