Perhaps you should try some spelling variations:
phong chong » thong thong
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dan toan » van toan, dan than, manh toan
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: hoc thieu xanh - hanh tranh cua ((phong chong) or (trong cong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh tranh cua ((phong chong) OR (trong cong)) dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh tranh cua ((phong chong) or (trong cong)) dan toan ban*.