Perhaps you should try some spelling variations:
nhung trong » hung trong, nhung tuong, thuong trong
chieu sang » chieu sach, chieu xanh, nhieu tang
trong tinh » truong tinh, trong kinh, trong sinh
hieu lang » hieu quang, nhieu tang, hieu van
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
toan cau » toan cao, toan ban, toan tap

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)) - anh ((tang cua) OR (mang cua)) nhung trong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - anh ((tang cua) OR (mang cua)) nhung trong tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (hieu lang)) - anh ((tang cua) OR (mang cua)) nhung trong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - anh ((tang cua) OR (mang cua)) nhung trong tinh toan cau*.