Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung toan » truong toan, trung tuan, trung tran
thong lanh » thong danh, tuong lanh, thong thanh
quang bang » quang dang, quang hoang, quang khang
quang ban » quang binh, quang tuan, quang tran
ho chieu » theo chieu, hoc thieu, doi chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - thanh trung toan thong thong lanh ((quang ban) or (quang bang))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung toan thong thong lanh ((quang ban) OR (quang bang)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung toan thong thong lanh ((quang ban) or (quang bang))*.