Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, manh truong
chieu sang » chieu sach, chieu xanh, hieu lang
hoc chieu » hoc thieu, ho chieu, hoc hien
dai thong » dai hong, dai thang, dai trong
dai tuong » dai cuong, doi tuong, dai duong
thanh cac » hanh cac, thanh bac, thanh ca
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap

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 sang - hanh truong ((dai thong) OR (dai tuong)) cong dan ((than cau) or (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - hanh truong ((dai thong) OR (dai tuong)) cong dan ((than cau) OR (thanh cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sang - hanh truong ((dai thong) OR (dai tuong)) cong dan ((than cau) or (thanh cac))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - hanh truong ((dai thong) OR (dai tuong)) cong dan ((than cau) or (thanh cac))*.