Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
chieu tinh » trieu tinh, lieu tinh, chau tinh
phuong dan » phuong danh, phuong doan, huong dan
doi chieu » doc hieu, doi chi, ho chieu
tranh va » tranh van, trang va, trinh va
va dung » van dung, va duong, vat dung
can cau » van cau, ca cau, cac cau
ban cau » bang cau, ban can, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - canh tranh va dung phuong dan ((can cau) or (ban cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - canh tranh va dung phuong dan ((can cau) OR (ban cau)).
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - canh tranh va dung phuong dan ((can cau) or (ban cau))*.