Perhaps you should try some spelling variations:
thieu thanh » thien thanh, thi thanh, thu thanh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cong nong » cong dong, cong trong, cong luong
cong cong » cong dong, trong cong, dung cong
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, xuan toan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu thanh - hanh tranh cua ((cong nong) OR (cong cong)) ((dan toan) OR (manh toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu thanh - hanh tranh cua ((cong nong) OR (cong cong)) ((dan toan) or (manh toan)) ban~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu thanh - hanh tranh cua ((cong nong) OR (cong cong)) ((dan toan) or (manh toan)) ban*.