Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh han » trinh quan
hang nong » thang long, han tong
cau thang » cang thang, cuu thanh, nam thang
thang bac » thanh bac, thong bac, hang ban

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 - hanh trinh han ((thanh cong) or (hang nong)) cau thang bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh trinh han ((thanh cong) OR (hang nong)) cau thang bac*.