Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
manh cua » doanh cua, ban cua
phan cac » nhan cach, phan dau, phan lap
than cap » khan cap, thanh lap, thanh cac

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 - canh manh cua ((hang cong) or (dang cong)) dan ((phan cac) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - canh manh cua ((hang cong) OR (dang cong)) dan ((phan cac) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - canh manh cua ((hang cong) or (dang cong)) dan ((phan cac) or (than cap))*.