Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
thong cong » tong cong, phong chong, cong cong
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 ((((thong cong) or (thong thong))) or (trong cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh tranh cua ((((thong cong) OR (thong thong))) OR (trong cong)) dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh tranh cua ((((thong cong) or (thong thong))) or (trong cong)) dan toan cao*.