Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh han » trinh quan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
han dung » chan dung, han duong, hanh dung
cong san » cong tac
san toan » van toan, dan toan, manh 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: ((ho chieu) or (doc hieu)) tinh - hanh trinh han dung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) tinh - hanh trinh han dung cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) tinh - hanh trinh han dung cong san toan cau*.