Perhaps you should try some spelling variations:
thanh tung » thanh cong
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
hang cong » dang cong, hang nong, bang cong
cong san » cong tac
san than » sang than, san thanh, ban than
than cao » toan cao, thai cao, than cap
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 hanh)) - ((hanh chinh) or (thanh tung)) va hang cong san than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - ((hanh chinh) OR (thanh tung)) va hang cong san than cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - ((hanh chinh) or (thanh tung)) va hang cong san than cao*.