Perhaps you should try some spelling variations:
tinh khong » tinh khang, tinh huong, benh khong
khong quan » thong quan, hong quan, thong quang
hieu luat » hieu qua
quan duoc » qua duoc, quan doc, quan quoc
duoc dien » duoc lieu
dien soat » dien hoat, dien hoa, kiem soat
van hieu » cao hieu
luan » lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin dung luan van hieu luat ) or ( tinh khong quan duoc dien soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung luan van hieu luat ) OR ( tinh khong quan duoc dien soat )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung luan van hieu luat ) or ( tinh khong quan duoc dien soat ))*.