Perhaps you should try some spelling variations:
thanh thanh » nhanh thanh, thanh toan, thanh phan
thieu sang » chieu sang, thieu khang, thieu quang
trung tuan » trung thanh, trung tam, tran tuan
song thanh » son thanh, dong thanh, cong thanh
hoc thieu » toc thieu, hoc hien
tran xuan » tran quang, tran van
bang song » nang song
thanh cau » thanh chau, thanh mau, nhanh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - thanh ((trung tuan) or (tran xuan)) bang song thanh thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh ((trung tuan) OR (tran xuan)) bang song thanh thanh cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh ((trung tuan) or (tran xuan)) bang song thanh thanh cau*.