Perhaps you should try some spelling variations:
nhung thong » chung thong, nhung chong, nhung phong
thong than » thong thanh, thong phan, thong nhan
tieu sang » chieu sang, tieu dung, tinh sang
tiem nang » tin nang, tich nang
hanh luan » khanh luan, hang luan, hanh luat
van nhung » van nhuong, va nhung, van hung
than hoa » thanh hoa, than thoa, phan hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu sang) or (tiem nang)) - hanh luan van nhung thong thong than hoa~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu sang) OR (tiem nang)) - hanh luan van nhung thong thong than hoa.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu sang) or (tiem nang)) - hanh luan van nhung thong thong than hoa*.