Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
nhung tuong » nhung huong, hung vuong, nhung cong
tang luan » dung luan
ho chieu » theo chieu, hoc thieu, doi chieu
anh tang » anh bang, anh dang, anh nang
dan phan » doan phan, dan chan, van phan
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chi)) sach - anh tang luan ((nhung tuong) or (nhung phuong)) dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chi)) sach - anh tang luan ((nhung tuong) OR (nhung phuong)) dan phan tu.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chi)) sach - anh tang luan ((nhung tuong) or (nhung phuong)) dan phan tu*.