Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh hang » thanh hang, hang hang, hanh han
dung cong » dung trong
cong tac » cong ty
than sao » than so, than vao, thanh san
thai cao » tai cao, thoai cac, thuat cao
hang cu » hang cua, hang cau, khang cu
cu dung » su dung, cau duong, duc dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) OR (chieu sang)) - hanh hang cu dung cong tac ((than sao) or (thai cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - hanh hang cu dung cong tac ((than sao) OR (thai cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sang)) - hanh hang cu dung cong tac ((than sao) or (thai cao))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sang)) - hanh hang cu dung cong tac ((than sao) or (thai cao))*.