Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh chat » tinh chat, trinh luat, trinh han
chat thong » chat chong, chat phong, chat trong
thong cong » trong cong, tong cong, thong thong
hoc dieu » hoc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: ((hoc dieu) or (toc thieu)) tinh - hanh trinh chat thong cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (toc thieu)) tinh - hanh trinh chat thong cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (toc thieu)) tinh - hanh trinh chat thong cong tan toan cau*.