Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, tong cong, thong thong
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - canh tranh cua thong cong dan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - canh tranh cua thong cong dan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - canh tranh cua thong cong dan ((toan cao) or (toan ban))*.