Perhaps you should try some spelling variations:
khong huong » khong xuong, thong huong, thong thuong
chieu sang » chieu sach, chieu xanh, nhieu tang
truong cua » truong ca, truong quan, huong cua
truong cao » truong dai
hieu lang » hieu quang, nhieu tang, hieu van
huong ban » huong dan, huong ben, huong lan
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi ((hieu lang) OR (chieu sang)) - thanh ((truong cua) or (truong cao)) khong huong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((hieu lang) OR (chieu sang)) - thanh ((truong cua) OR (truong cao)) khong huong ban than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi ((hieu lang) OR (chieu sang)) - thanh ((truong cua) or (truong cao)) khong huong ban than cau".
• Adding a wildcard symbol may retrieve word variants: hoi ((hieu lang) OR (chieu sang)) - thanh ((truong cua) or (truong cao)) khong huong ban than cau*.