Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
trinh phan » trinh han, thanh phan, trinh toan
hieu manh » chieu xanh, hieu nganh, hien hanh
hiem ngan » kim ngan, viem gan
phan ca » phan cac, phan cau, phan cam

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 manh) or (hiem ngan))) or (dieu hanh)) - hanh trinh quan nhung cong trinh phan ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((((hieu manh) OR (hiem ngan))) OR (dieu hanh)) - hanh trinh quan nhung cong trinh phan ca.
• Adding a wildcard symbol may retrieve word variants: doc ((((hieu manh) or (hiem ngan))) or (dieu hanh)) - hanh trinh quan nhung cong trinh phan ca*.