Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
chinh can » chinh ban, chinh cau, chinh ngan
cua hang » cua nhung, cua cong, cua ban
cua dang » cua cong, cua ban
cong san » cong tac
chinh ca » chinh ta, chinh va, chinh tai

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 hang) or (cua dang)) cong san ((chinh can) or (chinh ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh ((cua hang) OR (cua dang)) cong san ((chinh can) OR (chinh ca)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh ((cua hang) or (cua dang)) cong san ((chinh can) or (chinh ca))*.