Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thanh tung » thanh cong
hien xanh » hien hanh, hien nhanh, chieu xanh
hang cong » dang cong, hang nong, bang cong
van thanh » ban thanh, van tuan
ban than » ban thanh, ban hang, ban hanh
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - ((hanh trinh) or (thanh tung)) va hang cong ((ban than) OR (van thanh)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((hanh trinh) OR (thanh tung)) va hang cong ((ban than) OR (van thanh)) cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((hanh trinh) or (thanh tung)) va hang cong ((ban than) OR (van thanh)) cap".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hanh trinh) or (thanh tung)) va hang cong ((ban than) OR (van thanh)) cap*.