Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tranh qua » tranh cua, thanh qua, trinh qua
song cong » cong cong, tong cong, song hong
cong tac » cong ty
chai tu » cai tu, chay tu, chi tu
choi tu » hoi tu, cho tu, chon tu

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 - canh tranh qua song cong tac ((chai tu) or (choi tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh qua song cong tac ((chai tu) OR (choi tu))*.