Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
van hoang » van hoan, quan hoang, tran hoang
ban thanh » ban hanh, ban hang
thanh cao » thanh ca, thanh cac, thanh thao
van hang » van khang, van thang, ban hang
cong ban » cong bang, cong san, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - hanh trinh ((van hang) or (van hoang)) cong ban thanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh trinh ((van hang) OR (van hoang)) cong ban thanh cao*.