Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chinh chau » chinh cau, chinh cho, chinh phu
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
ho chieu » theo chieu, doi chieu, mot chieu
trinh su » trinh tu, trinh san, trinh cau
cong san » cong tac
chan cau » phan cau, can cau, chinh cau

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 (hoc thieu)) xanh - hanh trinh su dung cong san ((chan cau) or (chinh chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - hanh trinh su dung cong san ((chan cau) OR (chinh chau)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) xanh - hanh trinh su dung cong san ((chan cau) or (chinh chau))*.