Perhaps you should try some spelling variations:
thanh trung » thanh tung
danh trung » dang trung, dinh trung, manh trung
hanh trang » canh tranh, hanh trinh, minh trang
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
khao cuu » cham cuu, chao chu, kho cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: khao cuu tinh - ((((thanh trung) or (danh trung))) or (hanh trang)) cua nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: khao cuu tinh - ((((thanh trung) OR (danh trung))) OR (hanh trang)) cua nhung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: khao cuu tinh - ((((thanh trung) or (danh trung))) or (hanh trang)) cua nhung cong dan toan cau*.