Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong trinh » chuong trinh, cong trinh, huong tran
chiet tach » chieu sach
chinh phat » chinh phan, thinh phat, chinh phuc
trinh toan » tinh toan, thanh toan, trinh han
chinh phu » tinh phu, chinh cho
ho chiet » ho chieu, ho thiet, hoc thiet
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 chiet tach - hanh ((chinh phat) OR (chinh phu)) nhung phuong trinh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - hanh ((chinh phat) OR (chinh phu)) nhung phuong trinh toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh ((chinh phat) OR (chinh phu)) nhung phuong trinh toan ban*.