Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
trinh ve » trinh he, trinh va, trinh vi
ve thong » he thong, va thong, ve phong
cong tac » cong ty
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
ton thi » tong thi, ton thoi, ton tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ton thi thanh - hanh trinh ve thong cong tac ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ton thi thanh - hanh trinh ve thong cong tac ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ton thi thanh - hanh trinh ve thong cong tac ((toan cau) or (toan tap))*.