Perhaps you should try some spelling variations:
trinh thanh » tinh thanh, trinh han, trinh toan
hanh trinh » canh tranh, hanh chinh
hieu xanh » chieu xanh, hieu manh, hieu nganh
trinh cua » tinh cua, trinh luat, trinh quan
thanh cac » hanh cac, thanh bac, thanh ca
ban cong » bang cong, van cong, phan cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (dieu hanh)) - hanh trinh cua ban cong trinh thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (dieu hanh)) - hanh trinh cua ban cong trinh thanh cac.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (dieu hanh)) - hanh trinh cua ban cong trinh thanh cac*.