Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
chu tinh » chau tinh, chua tinh, cuu tinh
van dung » van dong, tin dung
cong san » cong tac
san phan » san pham, van phan, sat phan
phan dau » phan tu, hang dau
ho chu » hoi chu, cho chu, ho chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chu tinh - canh trinh ((van dung) OR (xay dung)) cong san phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chu tinh - canh trinh ((van dung) OR (xay dung)) cong san phan dau".
• Adding a wildcard symbol may retrieve word variants: ho chu tinh - canh trinh ((van dung) OR (xay dung)) cong san phan dau*.