Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
ho chieu » theo chieu, doi chieu, mot chieu
trinh va » trinh van, trinh vat, trinh ve
va thong » va thuong, va phuong, he thong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chi) or (((ho chieu) OR (hoc thieu)))) sang - hanh trinh va thong cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (((ho chieu) OR (hoc thieu)))) sang - hanh trinh va thong cong san toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chi) or (((ho chieu) OR (hoc thieu)))) sang - hanh trinh va thong cong san toan cau*".