Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, ho chieu, mot chieu
trinh vat » trinh van, trinh luat, sinh vat
dung cong » dung trong
vat dung » van dung, va dung, viet dung
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban
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 chieu) or (doi chi))) or (hoc hien)) tach - hanh trinh vat dung cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((doi chieu) OR (doi chi))) OR (hoc hien)) tach - hanh trinh vat dung cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: ((((doi chieu) or (doi chi))) or (hoc hien)) tach - hanh trinh vat dung cong san toan ban*.