Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
huong tinh » khuong tinh, thuong tinh, duong tinh
anh trong » anh thuong, dinh trong, lang trong
dai khung » dai khong, dai khoang, mai hung
dam khung » cam hung, cam nhung, nam nhung
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: hoc ((chieu xanh) or (chieu sang)) - anh trong ((dai khung) OR (dam khung)) huong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - anh trong ((dai khung) OR (dam khung)) huong tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu sang)) - anh trong ((dai khung) OR (dam khung)) huong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sang)) - anh trong ((dai khung) OR (dam khung)) huong tinh toan cau*.