Perhaps you should try some spelling variations:
trinh suat » trinh luat, trinh sat, trinh quan
hanh trinh » canh tranh, hanh chinh
dung tuong » dung thuong, dung truong, dung trong
suat dung » thuat dung, xuat duong, suat huong
van thanh » ban thanh, van tuan
ho chieu » theo chieu, hoc thieu, doi chieu
ban than » ban thanh, ban hang, ban hanh

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 hien)) xanh - hanh trinh suat dung tuong ((ban than) OR (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc hien)) xanh - hanh trinh suat dung tuong ((ban than) OR (van thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc hien)) xanh - hanh trinh suat dung tuong ((ban than) OR (van thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc hien)) xanh - hanh trinh suat dung tuong ((ban than) OR (van thanh)) cau*.