Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thuong dan » huong dan, thuong han, thuong lan
thuong dam » thuong mai, huong dan, truong dai
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
trinh su » trinh tu, trinh san, trinh 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)) xanh - hanh trinh su dung ((thuong dan) or (thuong dam)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) xanh - hanh trinh su dung ((thuong dan) OR (thuong dam)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) xanh - hanh trinh su dung ((thuong dan) or (thuong dam)) toan cao*.