Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
thong cung » thong cong, thong dung, thong vung
hoc thieu » toc thieu, hoc hien
tran xuan » tran van
cung tap » cuong tap, cung cap, cung ta
tap doan » tap quan
doan cao » doanh cao, toan cao, doan 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 thieu sang - thanh ((tran quang) or (tran xuan)) thong cung tap doan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh ((tran quang) OR (tran xuan)) thong cung tap doan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh ((tran quang) or (tran xuan)) thong cung tap doan cao*.