Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung dung » phuong dung, ung dung, thong dung
doi chieu » doc hieu, doi chi, ho chieu
tang luan » dung luan
anh tang » anh bang, anh dang, anh nang
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - anh tang luan ((nhung dung) or (nhung phuong)) van ((toan tap) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - anh tang luan ((nhung dung) OR (nhung phuong)) van ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - anh tang luan ((nhung dung) or (nhung phuong)) van ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - anh tang luan ((nhung dung) or (nhung phuong)) van ((toan tap) OR (toan ban))*.