Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh han » trinh quan
han thong » han thuong, hang thong, nhan thong
cuong tap » luong tap, luong tai, cong tan
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
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: ((ho chieu) or (toc thieu)) tinh - hanh trinh han thong ((cuong tap) OR (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (toc thieu)) tinh - hanh trinh han thong ((cuong tap) OR (cong tac)) toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (toc thieu)) tinh - hanh trinh han thong ((cuong tap) OR (cong tac)) toan cau*".