Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
chieu sang » chieu sach, chieu xanh, hieu lang
thien anh » thien danh, tien anh, thien thanh
trung tan » trung tuan, trung tran, trung tang
dung cong » dung trong
tan dung » tran dung, tin dung, van dung
cong ban » cong bang, cong san, cong tan
ban ca » ban cua, ban can, ban cam

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) or (thien anh)) - hanh trung tan dung cong ban ca dao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (thien anh)) - hanh trung tan dung cong ban ca dao*.