Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh trinh » hanh chinh
dong chung » dung chung, cong chung, dong hung
hoc thieu » toc thieu, hoc hien
khan than » phan than, khoan thanh, khanh thanh
cua dong » chua dong, cua cong, cua dang
han than » phan than, ban than, van than

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) or (canh tranh)) cua dong chung ((han than) OR (khan than)) man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - ((hanh trinh) OR (canh tranh)) cua dong chung ((han than) OR (khan than)) man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - ((hanh trinh) or (canh tranh)) cua dong chung ((han than) OR (khan than)) man".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - ((hanh trinh) or (canh tranh)) cua dong chung ((han than) OR (khan than)) man*.