Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
chieu sach » chinh sach, chiet tach, chieu sang
hanh tuong » manh tuong, hanh trong, hanh tung
tuong tham » luong tham, tuong tac, trong thai
nhung dung » phuong dung, ung dung, thong dung
ho chieu » theo chieu, hoc thieu, doi chieu
toan cao » toan tap
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: ho chieu sach - hanh tuong tham ((nhung dung) or (nhung phuong)) dan ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tuong tham ((nhung dung) OR (nhung phuong)) dan ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh tuong tham ((nhung dung) or (nhung phuong)) dan ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tuong tham ((nhung dung) or (nhung phuong)) dan ((toan cao) OR (toan ban))*.