Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hanh tang » anh tang, hanh mang, hanh tung
tong cong » trong cong, cong cong, dung cong
chi sang » chi lang, chieu sang, chi chang
cua tong » cua cong, cua dong, cua nong
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
doi chi » doi khi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sang - ((hanh tang) or (hanh trang)) cua tong cong tac ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sang - ((hanh tang) OR (hanh trang)) cua tong cong tac ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi chi sang - ((hanh tang) or (hanh trang)) cua tong cong tac ((toan cau) or (toan ban))*.