Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
hoc chieu » hoc thieu, ho chieu, hoc dieu
hang cong » dang cong, hang nong, bang cong
trinh va » trinh van, trinh vat, trinh ve
cong san » cong tac
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac
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 chieu) OR (hoc hien)) xanh - canh trinh va hang cong san than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc hien)) xanh - canh trinh va hang cong san than cap".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc hien)) xanh - canh trinh va hang cong san than cap*.