Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
dung thuat » vuong thuat, dung thuoc, dung chat
tinh hung » tinh huong, vinh hung, dinh hung
hung luan » chung luan, khung luan, dung luan
thuat doi » thuat do, thuat di, thuat doc
doi thien » doi hien, doan thien, duoc thien
de dan » de dang, de dao, ke dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh hung luan van de dan ) or ( tin dung thuat doi thien thanh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh hung luan van de dan ) OR ( tin dung thuat doi thien thanh ))*.