Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc dieu
trinh lan » trinh luan, trinh han, trinh san
dung cong » dung trong
lan dung » van dung, dan dung, lan hung
cong dan » cong san, cong tan, huong dan
than ban » thanh ban, toan ban, nhuan ban
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (hoc hien)) xanh - hanh trinh lan dung cong dan ((than ban) OR (than man))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) xanh - hanh trinh lan dung cong dan ((than ban) OR (than man)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (hoc hien)) xanh - hanh trinh lan dung cong dan ((than ban) OR (than man))".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc hien)) xanh - hanh trinh lan dung cong dan ((than ban) OR (than man))*.