Perhaps you should try some spelling variations:
trinh phuong » trinh duong, trinh dung, trinh cong
phuong chan » phuong cham, phuong thanh, phuong phap
minh cuong » dinh cuong, manh cuong, minh tuong
cuong luan » cuong quan, cong luan, truong luan
doan kien » doan dien, don kien, doan thien
kien soat » kiem soat, bien soan, kien hoa
hieu suat » hieu luat, hieu qua
van hieu » cao hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( trinh phuong chan doan kien soat ) or ( minh cuong luan van hieu suat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh phuong chan doan kien soat ) OR ( minh cuong luan van hieu suat )).
• Adding a wildcard symbol may retrieve word variants: (( trinh phuong chan doan kien soat ) or ( minh cuong luan van hieu suat ))*.