Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
cua phuong » cuu phuong, cuc phuong, luan phuong
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua thuong, cua cong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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 - hanh trinh ((cua thong) or (((cua khong) OR (cua phuong)))) cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh ((cua thong) OR (((cua khong) OR (cua phuong)))) cong dan than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh ((cua thong) or (((cua khong) OR (cua phuong)))) cong dan than ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh ((cua thong) or (((cua khong) OR (cua phuong)))) cong dan than ban*.