Perhaps you should try some spelling variations:
chung tuong » chung thong, nhung tuong, chuong duong
chieu sang » chieu sach, chieu xanh, nhieu tang
trinh quan » trinh luat, trinh han
hieu lang » hieu quang, nhieu tang, hieu van
tuong dan » huong dan, tung dan, xuong dan
dan than » dan chan, ban than, van than
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: ho ((chieu sang) OR (hieu lang)) - hanh ((trinh quan) or (tinh quang)) chung tuong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - hanh ((trinh quan) OR (tinh quang)) chung tuong dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - hanh ((trinh quan) or (tinh quang)) chung tuong dan than cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (hieu lang)) - hanh ((trinh quan) or (tinh quang)) chung tuong dan than cau*.