Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
cua dong » chua dong, cua cong, cua dang
qua dung » quang dung, su dung, qua song
cong dan » cong san, cong tan, huong dan
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

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 dong) or (qua dung)) cong dan ((phan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh ((cua dong) OR (qua dung)) cong dan ((phan cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh ((cua dong) or (qua dung)) cong dan ((phan cau) or (phan dau))*.