Perhaps you should try some spelling variations:
chinh luan » chinh ngan, trinh luan, binh luan
luan nhung » luan chung, luan hung, quan nhung
nhung cong » dung cong, thong cong, hang cong
thanh toan » thanh hoa, thanh san
hoa thiet » toan thiet, hoa viet, va thiet
hoc thiet » hoc thieu, hoc thuyet, hoc hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoa thiet) OR (hoc thiet)) tach - hanh chinh luan nhung cong ((thanh toan) or (tinh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoa thiet) OR (hoc thiet)) tach - hanh chinh luan nhung cong ((thanh toan) OR (tinh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoa thiet) OR (hoc thiet)) tach - hanh chinh luan nhung cong ((thanh toan) or (tinh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: ((hoa thiet) OR (hoc thiet)) tach - hanh chinh luan nhung cong ((thanh toan) or (tinh toan)) cau*.