Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
doi chieu » doc hieu, doi chi, ho chieu
trong dan » trong dang, trong san, trong tan
van dung » van dong, xay dung, tin dung
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
va dung » va duong, vat dung, va ung

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - canh tranh ((va dung) OR (van dung)) trong dan toan cao~".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - canh tranh ((va dung) OR (van dung)) trong dan toan cao*.