Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
trinh luan » trinh luat, trinh quan, trinh han
phung cong » nhung cong, nhung chong, dung cong
phong cong » phong chong, thong cong, chong cong
chau tinh » ha tinh, cua tinh, cac tinh
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chau tinh) or (cuu tinh)) - canh trinh luan ((phung cong) or (phong cong)) dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chau tinh) OR (cuu tinh)) - canh trinh luan ((phung cong) OR (phong cong)) dan phan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chau tinh) or (cuu tinh)) - canh trinh luan ((phung cong) or (phong cong)) dan phan cau*.