Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh qua » tranh cua, thanh qua, trinh qua
trong dan » trong dang, trong tan, trong ban
trong san » trong cac, cong san, dong san
qua dung » quang dung, su dung, qua song
chan tap » han tap, phan tap, chan ta

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chau tinh) OR (lieu tinh)) - canh tranh qua dung ((trong dan) OR (trong san)) chan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chau tinh) or (lieu tinh)) - canh tranh qua dung ((trong dan) OR (trong san)) chan tap~".
• Adding a wildcard symbol may retrieve word variants: ho ((chau tinh) or (lieu tinh)) - canh tranh qua dung ((trong dan) OR (trong san)) chan tap*.