Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
dong cong » duong cong, dang cong, cong cong
dung cong » dung trong
khi sang » khai sang, nha sang, thi song
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap

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 sang) or (phi san)) - hanh trinh cua ((dong cong) OR (dung cong)) ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((khi sang) OR (phi san)) - hanh trinh cua ((dong cong) OR (dung cong)) ban than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((khi sang) or (phi san)) - hanh trinh cua ((dong cong) OR (dung cong)) ban than cau".
• Adding a wildcard symbol may retrieve word variants: doi ((khi sang) or (phi san)) - hanh trinh cua ((dong cong) OR (dung cong)) ban than cau*.