Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phuong hoang
chieu tinh » trieu tinh, lieu tinh, chau tinh
phung cong » nhung cong, phong cong, nhung chong
canh tran » canh tranh, hanh trang, banh trang
doan phan » doanh phan, toan phan, dan phan
tran van » luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot chieu tinh - canh tran van ((phuong cong) or (phung cong)) doan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot chieu tinh - canh tran van ((phuong cong) OR (phung cong)) doan phan tu*.