Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hanh trinh » canh tranh, hanh chinh
hien xanh » hien hanh, chieu xanh, hien khanh
hang cong » dang cong, hang nong, bang cong
san thanh » ban thanh, van thanh, son thanh
thanh ban » thanh san, thanh van, thanh bac
trinh va » trinh van, trinh vat, trinh ve
cong san » cong tac
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) or (hien nhanh)) - hanh trinh va hang cong san thanh ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - hanh trinh va hang cong san thanh ban*.