Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hang cong » dang cong, hang nong, bang cong
chinh tai » chinh tri
chinh can » chinh ca, chinh ban, chinh cau
tang cua » mang cua, tang luan, thong cua
hang cua » mang cua, hang ca, huong cua
cong dan » cong san, cong tan, huong dan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - hanh ((tang cua) or (hang cua)) hang cong dan ((chinh tai) or (chinh can))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh ((tang cua) OR (hang cua)) hang cong dan ((chinh tai) OR (chinh can)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh ((tang cua) or (hang cua)) hang cong dan ((chinh tai) or (chinh can))*.