Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
chieu xanh » chieu sach, chieu sang, chieu tinh
tranh cua » doanh cua, manh cua
cua trong » cua truong, cua trung, qua trong
thanh cac » thanh bac, thanh ca, tranh cac
cong dan » cong san, cong tan, huong dan
hanh cac » hang cac, hanh cat, nhanh cay

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

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