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

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 phap hoan kien soat ) or ( minh cuong luan van hieu suat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh phuong phap hoan kien soat ) OR ( minh cuong luan van hieu suat )).
• Adding a wildcard symbol may retrieve word variants: (( trinh phuong phap hoan kien soat ) or ( minh cuong luan van hieu suat ))*.