Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
chiet tach » chieu sach
phuong dan » phuong danh, phuong doan, huong dan
hanh hang » thanh hang, hang hang, hanh han
ho chiet » ho chieu, ho thiet, hoc thiet
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - hanh hang va nhung phuong dan ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh hang va nhung phuong dan ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh hang va nhung phuong dan ((than cau) or (phan cau))*.