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