Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » thong cong, hang cong, nhung don
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dung cong » dung trong
chan tu » phan tu, chon tu, chai tu
han tu » phan tu, hanh tu, ban 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 cua ((nhung cong) or (dung cong)) tac ((chan tu) or (han tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh cua ((nhung cong) OR (dung cong)) tac ((chan tu) OR (han tu)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh cua ((nhung cong) or (dung cong)) tac ((chan tu) or (han tu))*.