Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
chau tinh » ha tinh, cua tinh, cac tinh
trong sat » trong san, trong sam, trong hoat
trong dat » trong dam, trong dan, trong dao
trinh tu » trinh ky, trinh do
phan dau » phan tu, hang dau
tu dung » tuc dung, tu duong, su dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: a ((chau tinh) or (cuu tinh)) - canh trinh tu dung ((trong sat) OR (trong dat)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: a ((chau tinh) OR (cuu tinh)) - canh trinh tu dung ((trong sat) OR (trong dat)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "a ((chau tinh) or (cuu tinh)) - canh trinh tu dung ((trong sat) OR (trong dat)) phan dau".
• Adding a wildcard symbol may retrieve word variants: a ((chau tinh) or (cuu tinh)) - canh trinh tu dung ((trong sat) OR (trong dat)) phan dau*.