Perhaps you should try some spelling variations:
truong phuong » truong chung, truong trung, dung phuong
manh tuong » manh tung, manh cuong, minh tuong
khien bang » phien ban, khien dong
theo luong » tien luong
mien bang » thien bang, dien ban, mien bac
tuong cua » truong cua, huong cua, thong cua
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((mien bang) OR (khien bang)) - manh tuong cua ((theo luong) or (truong phuong)) dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((mien bang) OR (khien bang)) - manh tuong cua ((theo luong) OR (truong phuong)) dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((mien bang) OR (khien bang)) - manh tuong cua ((theo luong) or (truong phuong)) dan toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((mien bang) OR (khien bang)) - manh tuong cua ((theo luong) or (truong phuong)) dan toan tap*.