Perhaps you should try some spelling variations:
tinh cuong » tinh huong, minh cuong, binh cuong
dinh cuong » dinh duong, dinh huong
chien soat » thien hoat
hieu soat » hieu suat, hieu hoat, hieu luat
tinh quan » tinh quang, trinh quan, tin quan
van chien » van hien, van tien
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: (( ((tinh cuong) or (dinh cuong)) luan van hieu soat ) or ( tinh quan luan van chien soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((tinh cuong) OR (dinh cuong)) luan van hieu soat ) OR ( tinh quan luan van chien soat )).
• Adding a wildcard symbol may retrieve word variants: (( ((tinh cuong) or (dinh cuong)) luan van hieu soat ) or ( tinh quan luan van chien soat ))*.