Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chieu » theo tieu, ho chieu, thi chieu
thong cong » trong cong, tong cong, thong thong
trinh van » trinh han, trinh quan, trinh toan
van thong » van thuong, van phong, va thong
theo chu » cho chu, chao chu, theo yeu
cong van » cong vang, cong san, song van
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

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