Perhaps you should try some spelling variations:
thanh trinh » hanh trinh, thanh tinh, thanh binh
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
va thong » va thuong, va phuong, he thong
cong san » cong tac
phan dau » phan tu, hang dau
phan cac » nhan cach, phan lap, phan van

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 - ((thanh trinh) or (canh tranh)) va thong cong san ((phan dau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh trinh) OR (canh tranh)) va thong cong san ((phan dau) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((thanh trinh) or (canh tranh)) va thong cong san ((phan dau) or (phan cac))*.